niryuu/sni-each-converted huggingface dataset:
Chemical reactions break down the bonds holding the rocks together. The rocks fall apart. They form smaller and smaller pieces. Oxidation takes place when oxygen combines with other elements in rocks. They form new types of rocks. The new substance is softer. Carbonation takes place when carbon dioxide reactions with certain types of rocks. A solution is formed that can easily be carried away by water. 
Output: rocks ; smaller pieces ,oxygen ,new types of rocks ; new substance ; certain types of rocks
Water evaporates from the earth. The evaporated water condenses into water drops. The water drops fall back to earth. The water accumulates on the earth. The water collects into bodies of water. The water soaks into the earth. 
Output: water ,evaporated water ,water drops
Fuel produces heat. Water is boiled to make steam. Steam spins turbine. Generator is turned. Makes electricity. Electricity transfers to transformers. Produces the correct voltage. 
Output: fuel ,heat ,water ,steam ,turbine ,generator ,electricity ,voltage
During evaporation the sun heats up water in rivers or lakes or the ocean and turns it into vapor or steam. The water vapor or steam leaves the river, lake or ocean and goes into the air. Water vapor in the air gets cold and changes back into liquid, forming clouds, which is called condensation. Precipitation occurs when so much water has condensed that the air cannot hold it anymore. Water falls back to the earth in the form of rain, hail, sleet or snow. When water ends up on land, it will either soak into the earth and become part of the "ground water" for animals or plants to drink. It may also run into the oceans, lakes, or rivers where the cycle starts again. 
Output: water ,vapor; steam; water vapor ,clouds ,rain ,hail ,sleet ,snow
Pressure happens underground. Tectonic plates underground pull and stretch. Small cracks are formed in the earth's crust. The tectonic plates push hard against each other. Some parts of the earth's crust move up high above the ground. 
Output: pressure ,tectonic plates ,cracks ,earth's crust
Water is exposed to heat energy, like sunlight. The water temperature is raised above 212 degrees fahrenheit. The heat breaks down the molecules in the water. These molecules escape from the water. The water becomes vapor. The vapor evaporates into the atmosphere. 
Output: water ,sunlight ,molecules ,vapor
You breathe in. Diaphragm and other muscles expand to allow room for your lungs to fill. The air flows into the narrow bronchioles in the lungs. From the bronchioles to the alveoli. The oxygen enters into the bloodstream. Is switched with the carbon dioxide in the bloodstream. The carbon dioxide enters through the alveoli. Through the narrow bronchioles. Into the lungs. The carbon dioxide is exhaled out of the body. 
Output: air ,oxygen ,carbon dioxide
Stars burn mass. The star burns until it runs out of fuel. The star can no longer support its weight. The layers of hydrogen press down on the core. The core gets smaller and smaller under the pressure. The pressure causes gravity to get stronger. The gravity becomes so powerful that nothing can escape it. Anything that gets close to it, is drawn into it by its gravity. Light is drawn into it. Light can not escape. 
Output: Mass ,Fuel ,Gravity
MRNA is made during the first step of protein synthesis, which is transcription. The DNA's genetic information, or secret code, gets written onto a strand of mRNA. Transcription takes place in the nucleus. The next step in making a protein is called translation. The mRNA attaches itself to the ribosome.  Read more at: http://www.ducksters.com/science/biology/proteins_and_amino_acids.php This text is Copyright    Ducksters. Do not use without permission. The ribosome figures out where to start on the mRNA by finding a special three letter "begin" sequence called a codon. The ribosome then moves down the strand of mRNA. When the ribosome sees the "stop" code, it ends the translation and the protein is complete. 
Output: MRNA ,DNA's genetic information ,protein ,mRNA ,ribosome
Gather the ingredients for the cake. Mix the flour, sugar, egg, and water to make batter. Pour the mixture into a cake pan. Place the cake in the oven to cook. Take the cake out when it is cooked through. Let the cake cool. Serve the cake. 
Output: flour ,sugar ,egg ,water ,batter ,cake
The piston starts at the top, the intake valve opens, and the piston moves down to let the engine take in a cylinder-full of air and gasoline. Then the piston moves back up to compress this fuel/air mixture. Compression makes the explosion more powerful. When the piston reaches the top of its stroke, the spark plug emits a spark to ignite the gasoline. The gasoline charge in the cylinder explodes, driving the piston down. Once the piston hits the bottom of its stroke, the exhaust valve opens and the exhaust leaves the cylinder to go out the tailpipe. 
Output: piston ,air ,gasoline ,spark ,explosion ,exhaust
A plant of animal dies in a watery environment. Is buried in mud and silt. Soft tissues quickly decompose leaving behind hard bones or shells. Over time sediment builds over the top and hardens into rock. As the bone decays mineral seeps in replacing it. Fossils are formed. 
Output: plant; animal ,soft tissues ,bones ,mineral ,fossils
The human body takes a breath inward. Air is transported to the lungs. Air reaches the alveoli, the smallest air sacs in the lungs. In the alveoli, air passes into the blood within small capillaries. The gaseous oxygen in the air dissolves into the capillary blood. The dissolved oxygen is picked-up by red blood cells. The red blood cells bind the oxygen via a protein called heme. Red blood cells circulate throughout the body and reach the various tissues. Within small capillaries, the heme release the oxygen. The oxygen can then reach the cells within the tissue. 
Output: air ,oxygen ,red blood cells
Chemical reactions in the battery causes a build up of electrons at the anode. This results in an electrical difference between the anode and the cathode. The electrons wants to rearrange themselves to get rid of this difference. The electrons go to the cathode. Electricty is created. 
Output: electricity ,electrons at the anode ,electrons at the cathode
A plant dies. The remains of the plant are buried very fast in sediment. The soft parts of the plant decay. The hard parts of the plant are replaced with minerals. The sediment turns into rock. The rock erodes. The fossil appears on the surface of the ground. 
Output: plant ,soft parts of the plant ,hard parts of the plant ,minerals ,sediment ,rock ,fossil
Coal is burned at a furnace. The resulting heat energy is used to heat water. The heated water is turned into steam. The steam drives a generator. Electricity is produced. 
Output: coal ,heat energy ,water ,steam ,electricity
Air contains invisible moisture called water vapor. Excess water vapor is condensed out as water in the form of water droplets. Water droplets are carried up into the clouds. The clouds become heavy with water droplets. When the cloud is saturated. Rain will fall. 
Output: water vapor ,water droplets ,cloud ,rain
Batteries are put in a flashlight. The flashlight is turned on. Two contact strips touch one another. A circuit is completed between the batteries and the lamp. The lamp in the flashlight begins to glow. The reflector in the flashlight directs the lamp's beam. A straight beam of light is generated. The flashlight is turned off. The circuit is broken. The beam is no longer visible. 
Output: batteries ,flashlight ,lamp ,straight beam of light ; beam ,circuit
A fuel source must produce heat. Heat is used to create steam. Steam will be used to power turbines. Turbines will work together with magnets to generate electricity. Electricity or moving electrons will then flow through wires. The wires will carry electrons to homes and businesses remotely. 
Output: Fuel Source ,Heat ,Steam ,Electricity
The virus finds an animal cell. The virus attaches to the cell's surface. The cell swallows the virus. The virus' RNA is released into the cell. The cell mistakenly reads the virus' RNA instead of its own. The cell creates new viruses. The animal cell releases the new viruses. The new viruses can infect more cells. 
Output: virus ,virus' rna ,new viruses
Coal is loaded into the firebox. The boiler produces steam under high pressure. The steam generated in the boiler flows down into a cylinder. Just ahead of the wheels, pushing a tight-fitting plunger, the piston. The piston is connected to one or more of the locomotive's wheels through a kind of arm-elbow-shoulder joint called a crank and connecting rod. As the piston pushes, the crank and connecting rod turn the locomotive's wheels and power the train along. An outlet valve opens and the piston pushes the steam back through the cylinder and out up the locomotive's chimney. 
Output: coal ,steam
A plant or animal dies in mud or soil. The bones are all that remains. Over time the bones are covered in sediment. The sediment becomes rock. The rock becomes a fossil. 
Output: plant or animal ,bones ,sediment ,rock ,fossil
Waters flows downwards thanks to gravity. Enters the dam at high pressure. The moving water spins the turbines in the power plant. The turbines turn the generators. The generators spin, and produce electricity. The water leaves the dam at the bottom. 
Output: waters;water ,turbines ,generators ,electricity
Items are collected. The items are sorted. Trash is removed from everything else. Goes to a landfill. The items go into a baler machine for each kind of material. They come out as bales. The bales are shipped to manufacturers to use to make products. 
Output: items ,trash ,bales ,products
Water in the clouds becomes very cold. The cold water forms ice crystals. The ice crystals grow by absorbing surrounding water droplets. Form snowflakes. The snowflakes fall to the ground. 
Output: water ,ice crystals ,snowflakes
A plant dies and withers. The dead plant starts to draw microbes. The microbes break down the material. Forms decay. The resulting material disappears. The plant becomes one with the soil. 
Output: plant ; material ,microbes
A seed or seeds planted into the ground. The seed becomes a seedling and grows with water. The sun. The seedling grows into a mature plant. Becomes a flower. 
Output: seed ; seeds ,seedling ,mature plant ,flower
Water vapor is in warm air. The warm air cools. The warm air expands. The water vapor in the air condenses. The water vapor forms water droplets or ice crystals. 
Output: water vapor ,water droplets; ice crystals
First you dig a whole. You place a pumpkin seed in the hole. You put some dirt over the seed. You water the seed. The seed will sprout. A vine will grow. The vine will flower. Pumpkins will appear where the flowers were. 
Output: pumpkin seed ,vine ,flower
Food enters the mouth. Food mixes with saliva. Food is swallowed. Enzymes in the stomach break down the food. The food moves to the small intestine. Hormones from the pancreas move to the small intestine. The hormones create the amount of sugar in the blood from the food. The sugar in the blood travels to the body. The sugar provides energy for the muscles. 
Output: food ,broken down food ,sugar ,energy
A rig drills into the earth where oil is present. A pipe is placed in the hole. A pump is added to the pipe. Oil is pumped out. Oil is placed in barrels. Barrels are loaded on trucks. Trucks go to a refinery. Crude oil is refined to motor oil. Motor oil is bottle. Shipped to gas stations. 
Output: oil ; crude oil ,motor oil
The coal is pulverized to a very fine powder. The coal powder is mixed with hot air and blown into the firebox of the boiler. Water pumped through pipes inside the boiler is turned into steam by the heat. The pressure of the steam pushing against a series of giant blades turns the turbine shaft. Turbine shaft is connected to the shaft of the generator. The magnets inside the generator spin within wire coils to produce electricity. 
Output: coal powder ,water ,steam ,turbine shaft ,magnets ,electricity
The liver takes in blood from the rest of the body. The liver uses enzymes to clean the blood. The cleaned blood is expelled. The liver creates bile from the items filtered. The liver takes energy and stores it as glycogen. The bile is sent to the intestines. 
Output: blood ,cleaned blood ,items filtered ,bile ,energy ,glycogen
Put water in an ice cube tray. Put the ice cube tray in the freezer. Wait 5 to 6 hours. Take the ice cube tray out of the freezer. Bend the tray slightly to get the ice cubes out and into a drink. 
Output: water ,ice cube tray ,ice cubes
A flowering plant has stamen and pistils. An insect ot bird lands on the plant. Some of the pollen sticks to it. The insect or bird travels to another plant of the same species. The pollen is tranferred to the new plant. 
Output: stamen and pistils ,pollen
Air rises. Rising air cools. Water vapor forms. Water vapor condenses. Clouds form. 
Output: air ; rising air ,water vapor ,clouds
Solar panels are made up of two types of silicon. Sun shines on solar panels. Sunlight goes into the top half of the solar panel. Sunlight travels into the bottom half of the solar panel. The "jump" between the two halves can be used to make direct current. A solar "inverter" changes the direct current to alternating current. Alternating current can be used to power things in your house. 
Output: sunlight ,direct current ,alternating current
Build a satellite. Attach a rocket. Add rocket fuel. Launch rocket. Satellite goes into orbit. 
Output: satellite ,rocket ,rocket fuel
A sperm meets an egg in the uterus of a woman. The sperm implants itself into the egg. The sperm and egg form a zygote on the wall of the uterus. The fetus grows and develops. The woman gives birth to a baby. The baby is raised by parents until it is able to take care of itself. The person goes out into the world and finds a job. The person meets other people and has a life. The person gets a career, and gets married. The person retires and eventually passes away. 
Output: sperm ,egg ,zygote ,fetus ,baby ,person ,other people
Prophase, the chromosomes become visible. Centrioles separate to move to opposite poles. Metaphase, the chromosomes line up in the center. Anaphase, the chromatids separate. Are pulled apart. Telophase, the chromosomes gather at opposite poles. Two new nuclear membranes form. The cell membranes pinch. Divide into two individual cells. 
Output: chromosome ,centriole ,spindle fiber ,chromatid ,nuclear membrane
Magma cools inside the crust. Magma crystalizes. Lava cools on the surface. Lava crystalizes. Minerals dissolved in water crystlize. 
Output: magma ,lava ,minerals
Get the ice tray. Remove any ice cubes currently in the tray. Fill the tray with cold water. Ensure the tray is evenly filled to an appropriate level. Open the freezer. Place the tray in the freezer. Close the freezer door. Wait. 
Output: ice tray ; tray ,ice cubes ,cold water
An organism dies. Water seeps into the remains. Minerals dissolved in the water form crystals. Crystalized minerals cause the remains to harden. The minerals form a fossil. 
Output: organism ,crystals; crystalized minerals; minerals ,fossil
Bees go out during the day and gather food. Then while gathering of their food, they make wax, which is the building block of their bee hive. Bees make food called honey. They use a sticky, glue-like substance called propolis as a binding to hold their hives together. Bees produce all of the building blocks to build their hive in their own body. 
Output: bees ,food ,wax ,honey ,propolis ,hives
Over 99% of the exocrine pancreas cells produce digestive juices. They secrete digestive juice "externally" into the small intestine. There are enzymes for breaking down fats, proteins , and carbohydrates. Digestive juices flows from the pancreas through an excretory duct into the small intestine. When the blood sugar levels rise, as they might after a meal, insulin is released. When blood sugar levels are too low, the pancreas releases glucagon into the bloodstream. 
Output: digestive juices; digestive juice ,insulin ,glucagon
Warm air from the surface rises into the higher cold air. The water vapor in the air is condensed. The condensed water and dust forms a cloud. Wind in the cloud bounces the water droplets around. The bouncing droplets join together. The bigger droplets get heavy. The heavy droplets fall. As they fall, they join with more moisture in the air. The droplets get larger. Rain falls. 
Output: warm air ,water vapor ,condensed water ,dust ,cloud ,water droplets ; droplets ,moisture ,rain
Gases cause pressure beneath the earth. The gases come to a head and push molten magma to the surface. The magma cools. With enough time the pressure builds up greatly. The resulting volcano may explode. 
Output: gases ,pressure ,magma; molten magma ,volcano
Choose what you want to write your letter on. Think of what you want to say. Write some nice things!. Place the letter into an envelope. Put a stamp on the top right corner of the face of the envelope. Write the address of the recipient on the envelope. Put the envelope in your mailbox. Raise the flag on your mailbox, indicating to the mailman that you have outgoing mail. 
Output: envelope ,flag on your mailbox ,letter ,nice things ,stamp
Green is a color that gathers sunlight easily. Sunlight is gathered by the leaves of the plant. The sunlight is broken down into glucose through photosynthesis. The glucose travels the plant. The plant uses that glucose as energy to grow. 
Output: sunlight ,glucose ,energy
Comets fly around in outer space. A comet flies close to a planet. The comet enters the planet's atmosphere. The comet crashes into the planet. The energy of the impact creates a hole on the planet. 
Output: comet ,hole; crater
An owl leaves his nest. The owl flys out into the night. The owl looks down at the ground. The owls keen eyesight allows him to see in the dark. The owls sensitive hearing allows him to locate hidden prey. The owl swoops down. The owl catches a mouse in his talons. 
Output: owl ,mouse
Several types of gases form in the atmosphere. May come from different sources. The gases remain trapped in the atmosphere. Through the suns light the gases hold in heat and energy. Trap them in our atmosphere. The earth may become warmer this way. 
Output: several types of gases ,atmosphere ,earth ,heat ,energy
Fluid. Waste enters the kidneys. A processing moment in the kidneys let waste and fluid pass. Prevents larger molecules to pass. Fluid goes back to the bloodstream. Bad waste is removed. The final product is turned into urine. 
Output: fluid ,waste;larger molecules;bad waste ,urine
Muscles work by expanding and contracting. A muscle fiber gets a signal from its nerve. Proteins and chemicals release energy to either contract the muscle or relax it. When the muscles contracts the bones connected to he muscle are pulled closer together. When the muscle relaxes the bones move farther apart. 
Output: signal ,energy
Rainwater picks up carbon dioxide from the air. Rainwater goes into soil. Water with carbon dioxide percolates through soil. The water becomes a weak acid. The water dissolves limestone. Caves form where the limestone was dissolved. 
Output: rainwater ,carbon dioxide ,water ,weak acid ,limestone ,caves
Some of the rock in the ground is made of limestone. Over long periods of time rain can hit the limestone. And cause a acidic reaction. The limestone will slowly disintegrate. A large gap with be where the limestone was. Result in the cave. 
Output: rain ,limestone ,gap; cave
Fault lines appear underground. The fault lines grow over time. The rocks on each side of the fault lines rub against the rocks on the other side of the fault line. The rocks put pressure on each other. The rocks break from the pressure. The breaking of the rocks releases a lot of energy. The energy causes seismic waves. The seismic waves make the earth shake. 
Output: fault lines ,pressure ,rocks ,energy ,seismic waves
People separate different materials to be recycled. The recyclable materials go to a recycling center. The recycling center further separates the materials. Large equipment compacts the materials into bales. The recyclable materials are shipped to other recycling centers. The other recycling centers further process the materials that center specializes in. The materials are purchased by manufacturers. The manufacturers process the recycled materials the same way they would use new materials. The recycled materials are incorporated into new products. 
Output: recyclable materials ; the materials ,bales ,bales
A star burns in space. Eventually it burns all its hydrogen. Becomes a red giant. Once the red giant burns itself out. The core of the star collapses. The gasses will start to disperse. Only the core is left. A white dwarf has been formed. 
Output: star ,hydrogen ,red giant ,white dwarf
People breathe and expel carbon dioxide. Engines produce carbon dioxide. Living things produce waste. Waste decomposes. Decomposition produces methane. Water evaporates. Water vapor joins the atmosphere. Carbon dioxide, water vapor and methane are greenhouse gases. 
Output: carbon dioxide ,methane ,water ,water vapor ,greenhouse gases
Pack up your camping gear, food, and clothes. Drive to your campsite. Set up your tent. Start a fire in the fire pit. Cook your food in the fire. Put the fire out when you are finished. Go to sleep. Wake up. Put away your tent. Drive home. 
Output: camping gear ,food ,clothes ,fire ,tent
Fans blow air onto the evaporator's coils. The refrigerant within the coils absorbs the heat. The refrigerant changes from a liquid to a gas. The compressor compresses the gas, increasing the pressure. The hot, pressurized gas moves to the condenser. The gas condenses in the condenser and becomes a liquid again. Heat is radiated away from the condenser. The cooled liquid is returned to the evaporator. 
Output: Air ,Heat ,Refrigerent Liquid ,Refrigerent Gas ,Liquid
Water comes into contact with something made of iron. The water combines with carbon dioxide in the air to form carbonic acid. As the acid is formed, the iron starts to dissolve. Some of the water breaks down into hydrogen and oxygen. The free oxygen and dissolved iron bond together. They form iron oxide, which is rust. 
Output: water ,iron ,carbon dioxide ,carbon acid ,hydrogen ,oxygen ,iron oxide ; rust
Sound enters the ears of a person. The sound hits a drum that is inside the ear. The drum inside the ear converts the sound to electrical impulses. The electrical impulses are sent to the brain. The brain can decode the impulses into sound. 
Output: sound ,electrical impulses ,sound
Magma rises to the surface during a volcano. The magma undergoes changes in temperature. The magma undergoes changes in pressure. The magma cools. The magma solidifies. The magma crystallizes. Igneous rock is formed. 
Output: magma ,igneous rock
Warm water rises off the seas. The water condenses as it cools and gets higher in the air. Then the condensation forms into clouds. The clouds travel over areas on land. The clouds reach a saturation point. The rain falls from the clouds. 
Output: warm water ; water ,clouds ,rain
You start with a glacier. Through warming or other methods a chunk is taken off the glacier. The chunk drifts into the sea. And it settles where it can remain in its state. It is considered an iceberg. 
Output: Glacier ,Chunk ,iceberg
A sperm and egg meet inside a woman's fallopian tube. The fertilized egg, now a zygote, travels to the uterus. The zygote implants in the uterus. The zygote becomes an embryo. The embryo becomes a fetus. The fetus grows for approximately 9 months. The woman gives birth to a baby. The baby grows into a child. The child becomes an adult. The adult mates with another adult. 
Output: sperm ,egg ,fertilized egg; zygote ,embryo ,fetus ,baby ,child ,adult
Humans are born as babies. Babies become infants. Infants become children. Children learn skills. Children become teenagers. Teenagers undergo puberty. Teenagers become adults. Adults have children. Adults become elderly. Elderly humans die. 
Output: babies ,infants ,children ,teenagers ,adults ,elderly
Energy is created by burning either diesel or petrol in a combustion chamber. The energy is transferred from the pistons moving up and down at high speeds. This piston motion is converted to a rotary motion through the crankshaft and axle. The axle turns the wheels. The car moves forward. 
Output: diesel ,petrol ,energy ,pistons ,piston motion ,rotary motion ,car
A tadpole is hatched. The tadpole eventually grows hind legs. The tadpole loses its tail. The tadpole becomes a frog. The frog mates with another frog to produce more offspring. A tadpole is hatched. The cycle begins again. 
Output: tadpole ,hind leg ,tail ,frog ,offspring
Coal is burned in a boiler. Steam is produced under pressure. Flows into a turbine. The turbine spins. Creates electricity. 
Output: coal ,steam ,turbine ,electricity
Electrical signals in the brain travel through nerves to muscles. Two types of proteins exist in filaments in the muscles. The filaments move when the brain instructs them to. The motion of the filaments cause the muscle to shorten and contract. Opposing pairs of muscles exist in order to provide the necessary range of motion. 
Output: electrical signals ,proteins ,filaments
The organism must die to begin the process. The soft tissue decomposes. The bones are left behind. Scavengers tear the body apart and move the bones elsewhere. Wind and rain also scatter the bones further. The bones left behind will weather and become buried by sand and soil. The proteins in the bone are replaced with minerals that are dissolved in the soil. This creates a rock-like substance called a fossil. Water and wind erosion wear away the layers of soil on top of the fossil. This makes discovery of the fossil possible. 
Output: organism ,soft tissue ,bones ,proteins ,soil ,minerals ,fossil
Plants produce fruit which contain seeds of the plant. An animal eats the fruit from a plant. The animal digests the fruit. The seeds are not digested. The seeds pass through the animal's digestive system. The seeds are in the animal's droppings. The seeds are now in another location and can grow. 
Output: fruit ,seed
A frog lays eggs in the water. Tadpoles develop inside of the eggs. The eggs hatch. The tadpoles eat and grow. The tadpoles grow legs and form into frogs. The frogs leave the water. 
Output: frogs ,tadpoles ,eggs ,legs
There is a fetus in the womb. They are born and are a baby. The baby grows into a child. Puberty turns the child into an adolescent. The adolescent becomes an adult. An adult becomes an elderly person. The elderly person dies. 
Output: fetus ,baby ,child ,adolescent ,adult ,elderly person
Bacteria enters the body. Bloodstream. Cells in the body are attacked. Cells are killed. Different kinds of sickness are formed. 
Output: bacteria ,cells ,sickness
Bees land on flowers and eat the nectar of the plants. While on the flowers pollen gets on the bee's fur. The bee flies to another area with other flowers. The pollen is deposited in that area. A plant is able to reproduce. 
Output: bee ,nectar ,pollen
Forest fires burn forests. The animals living in the forest have fewer places to hide. Predators can now find their prey eaiser. Birds will fly away from the area. Waters warm up which hurts the fish swimming in them. 
Output: forests ,places to hide for animals
You inhale air through your nose and mouth. The air travels down into your lungs. Oxygen from the air goes into your bloodstream. Oxygen circulates throughout the body due to the heart's pumping. Carbon dioxide travels from the blood into the lungs. Carbon dioxide travels from the lungs up the windpipe. Carbon dioxide is exhaled. 
Output: air ,oxygen ,carbon dioxide
The growing season starts. Bark grows on a tree. The inside of the tree grows. The bark is pushed out around the tree trunk. The bark leaves a ring. The growing season slows down and ends. 
Output: bark ,ring
A bird lays an egg. The egg hatches into a baby bird. Baby bird eats. Grows into an adult bird. The bird finds a mate. The pair build a nest. The birds lay eggs. 
Output: egg ,baby bird ,adult bird ,nest ,eggs
You speak into the receiver on your phone. Sound waves move parts inside the receiver. Movement causes the magnet inside to produce eletricity. Electricity is transferred through  a wire or cable. A membrane in the other persons phone is vibrated by the magnet in their telephone. Sound is produced. They hear you. 
Output: Speak ,Sound Waves ,Electricity ,Sound
Your body accomplishes "rapid hemostasis" (stops the bleeding) through a process called vasoconstriction, in which your blood vessels are closed tight. Inflammation is your body's way of alerting you of an injury. Proliferation and migration is when cells move in a certain orderto been to heel and to further contract blood vessels. and. The body then begins the process of rebuilding tissue and is called angiogenesis. It's time to begin regrowing damaged skin which is called reepithelialization. Synthesis often happens almost simultaneously as it form blood clots. Synthesis helps further prevent bleeding as new skin and veins are formed. 
Output: Cut ,Tissue ,Skin ,Blood Clots ,skin ,veins
Someone is infected with bacteria. That bacteria begins to grow and reproduce inside the cells. The dividing bacteria begin to make toxins. Those toxins damage your cells. Disease symptoms may begin. 
Output: bacteria ,cells ,toxins ,disease symptoms
Waste products are deposited in the blood. Blood is carried to the kidneys through the renal arteries. The kidneys contain filters inside. The filters capture the waste products. The waste is combined with water to make urine. The urine leaves the kidney and is collected in the bladder. The cleaned blood is returned to the body. 
Output: waste products ,blood ,water ,urine
There is a lot of rain. Water levels of a river or lake get higher. Water builds up on the ground. Water covers streets. Water goes into houses. The rain or other source of water stops. Water flows into streams. The rest of the water evaporates. 
Output: rain ,water ,streams ,water levels
EGG. ITS LAID ON A LEAF OR PLANT. THE EGG HATCHES. THE LARVA COMES OUT(CATERPILLAR). IT BEGINS TO EAT ON THE LEAF THAT IS WAS BORN ON. CONTINUES TO EAT TO GROW QUICKLY. AFTER ITS GROWN TO FULL LENGHT IT FORMS INTO A PUPA. UNDERGOES METAMORPHOSIS TO BECOME BUTTERFLY. AFTER HE BUTTERFLY IS FOMED IT PUMPS BLOOD INTO ITS WINGS TO GAIN STRENGHT TO BE ABLE TO FLY. TH EBUTTERLFY IS FIANLLY ABLE TO FLY AWAY. 
Output: egg ,larva ; caterpillar ,pupa ,butterfly ,blood
Fuel is converted to energy when air and petrol mix. The car engine burns the mix of air and petrol. Hot gas from the burning pushes the pistons. The resulting energy powers the crankshaft. Crankshaft powers the gears. The gears make the wheels roll. 
Output: air ,petrol; fuel ,energy ,hot gas
The planter must select a crop. The soil is prepared properly for that specific crop. Fertilizer is added to the soil. Seeds are planted in the field. Irrigation is set up to keep the crops properly watered. The crops grow. The crops are harvested. 
Output: crops ,fertilizer ,seeds
A nuclear reactor generates heat by nuclear fission. The heat created raises steam. The steam runs through turbines. The turbines generate electricity. The electricity leaves the station. 
Output: heat ,steam ,electricity
A plant dies. Bacteria from the ground migrate to the plant material. Bacteria release enzymes onto the plant material. The enzymes break down the plant cells to simpler components. The bacteria absorb the resulting components. 
Output: bacteria ,enzymes ,plant cells ,components
The bat sends out sound waves from their mouth or nose. The sound waves hit an object. Echoes are produced. The echo returns to the bat's ears. The bat hears the echo. The bat can figure out where the object is located. 
Output: sound waves ,echo
Rain clouds travel across the sky. Rain clouds are stopped or slowed by mountains or wind. The rain clouds drop the rain. The clouds are no longer raining when or if they reach the other side of the obstacle. On the other side of the mountains or rain, there isn't much rain. The area that receives little rain develops a very different ecosystem. The area that receives little rain becomes a desert. 
Output: rain clouds ,rain ,clouds ,a very different ecosystem ,desert
Warm, moist air moves from south to north. Cool, dry air moves from north to south. The air masses meet. The conditions that form are not stable because the air masses are so different. Winds are directed in a certain way because of how the masses interact. An updraft results. Winds start to form circular patterns in the updraft. A tornado can result. 
Output: warm, moist air ,cool, dry air ,air masses ; masses ,wind ,updraft ,circular patterns ,tornado
The cornea and lens refract light into a small image. Shine it on the retina. The retina's rods and cones convert it to electrical pulses. The optic nerve carries electrical pulses through the optic canal. Nerve fibers end in the lateral geniculate nucleus and the visual cortex. 
Output: light ,small image ,retina's rods and cones ,electrical pulses
A fuel is heated in an oven. Above the oven is a tank of water that is sealed. The tank of water begins to boil above the oven. A the water boils steam is created. The steam is denser than air so it needs a place to go. The steam is forced out of the tank and into a piston. The piston moves up. The valve of the piston closes. The valve on the next piston opens. The steam fills the next piston, driving it up, and the other one down. 
Output: fuel ,water ,steam
A butterfly starts as an egg. The egg hatches. A larva emerges. The larva eats and grows. The larva sheds its skin. The larva enters a chrysalis. The pupa grows inside the chrysalis. The adult butterfly exits the chrysalis. The adult butterfly is now fully grown. The adult butterfly lays more eggs. 
Output: egg ; eggs ,larva ,pupa ,adult butterfly
A forest fire starts. The fire surrounds the vicinity. The animals are trapped. Those that survive have their habitat destroyed. The survivors must find a new habitat. Conflict with other animals occur. 
Output: forest fire ,animals ,habitat
Waste builds up in the blood. Blood enters the kidney. Blood passes through nephrons in the kidney. Different kinds of waste are momentarily trapped in the kidney. Cleaned blood flows out of the kidney. Filtered waste accumulates in liquid form (urine). Urine flows out of the kidney into the bladder. 
Output: waste ,blood ,cleaned blood ,filtered waste ,urine
Blood delivers oxygen in the body. Proteins and acids are broken down in the liver. The liver releases waste in the form of urea. The blood carries the urea and carbon dioxide to the kidneys. The kidneys strain the urea and salts needed from the blood. The carbon dioxide by product is transported back to the lungs. Carbon dioxide is exhaled by the lungs. 
Output: oxygen ,proteins and acids ,waste ; urea ,carbon dioxide ,salt
Water flows by rocks. Chemicals are in the waters. Chemicals react with rocks. Rocks change to a different kind of rock. Oxygen in the air reacts with rocks. Rocks change to a different kind of rock. 
Output: water ,rocks ,chemicals ,oxygen
An egg is laid by a mother bird. A baby bird forms within the egg if it is fertilized. The baby bird begins pecking out of the egg. The baby bird is unable to fly to get food. The mother bird must feed the baby bird food. The bird grows stronger and grows wings. The bird is able to fly. The bird is able to leave the nest and find food. The bird is able to reproduce. 
Output: egg ,baby bird; bird ,wings
Air is brought in through the mouth. Passes through the lungs. And into the bronchial tissue. The carbon dioxide is removed. The lungs bring the oxygen to the rest of the body. 
Output: air ,carbon dioxide ,oxygen
A man and woman mate. Embryo is C. Embryo grows and develops into a fetus inside the woman's womb. The fetus is born. Begins to grow and develop through infancy and childhood. In the teenage years the human experiences puberty. Reaches sexual maturity. At 18 the human becomes an adult. Adult may procreate continuing the cycle. 
Output: embryo ,fetus ,infancy and childhood ,adult
A butterfly lays an egg. A larvae matures inside of the egg. The caterpillar hatches from the egg. The caterpillar eats and grows. The caterpillar spins a coccoon around itself and forms into a pupa. The butterfly forms inside of the coccoon. The mature butterfly emerges from the coccoon. The butterfly mates. The female butterfly lays eggs. 
Output: egg ; eggs ,larvae ,caterpillar ,pupa ,butterfly
Chemicals like sulfur dioxide and nitrogen are released into the air. These substances rise into the high atmosphere. They react with water and oxygen. This creates a more acidic rain. The rain with the high acid content falls. 
Output: sulfur dioxide ,nitrogen ,acidic rain ,water ,oxygen
The salt water is heated. As the saltwater is heated the water becomes a gas. The salt particles sink to the bottom of the container. Gaseous water is piped into another container. Allowed to cool. The salt particles are left behind in the first container. The second container contains fresh water. 
Output: salt water ,gas ,gaseous water ,salt particles ,fresh water
Salt water is contained in a factory or plant. The water is boiled to a very high tempature. The salt becomes seperated from the water. The salt is removed. The water is able to be drank at this point. 
Output: salt water ,salt ,water
Carbon dioxide enters the leaf through the stomates. Water is absorbed by the plant and transported to the leaves. Sunlight is captured by the plant. Energy in the form of ATP is made from the sun's energy. Carbon dioxide, water, and ATP form sugars via the Calvin cycle. Oxygen is given off as a byproduct. Oxygen leaves the leaf through the stomates. Water is reused or it leaves the leaf. The sugars can be used by the plant to make cellulose. 
Output: atp ,carbon dioxide ,water ,cellulose ,oxygen ,sugars ,sunlight; sun's energy
The spider picks a suitable place. The spider produces sticky silk from its abdomen. The spider attaches it to objects where it wants to build the web. The spider strings this silk back and forth between objects. A web is created. 
Output: silk ,web
Waves hit the coast. Waves have energy that pushes the water and sediment. The sediment can help erode land like sandpaper. Water washes the sediment back. Some sediment is left as sand. 
Output: waves ,coast ,water ,sediment ,land ,sand
The animal dies and the body falls down. It is not eaten by anything. The body falls in a sandy or wet place. The soil forms around the body. Time passes on and the rock forms. Millions years later the fossil forms. A person now finds the fossil. 
Output: animal; body ,soil ,rock ,fossil
Water comes through a filter. The filter has small pores to catch pollutants. The filter will catch chlorine, heavy metals, and other chemicals. The filter allows water and mineral ions like fluoride to pass through. The water on the other side of the filter is much cleaner. 
Output: chorine ,heavy metals ,other chemicals
Animals pull a fruit off a plant or pick a fruit up from the ground. Animals eat the fruit. Animals drop some seeds onto the ground. Animals eat some seeds. The seeds are in the animal's waste. The waste goes onto the ground. There are seeds on the ground in different areas away from the plant. 
Output: fruit ,seeds ,waste
You breathe in through your nose or mouth. The air travels through your windpipe. Into your lungs. Inside your lungs are tiny air sacs. The air sacs transfer the oxygen into your blood. The oxygen travels through your blood stream. The carbon dioxide from your blood stream is transferred to your air sacs. You breathe out and expel the carbon dioxide from your lungs. 
Output: air ,oxygen ,carbon dioxide
Cold water taken in through a hose to the bottom. Heating element heats water. Pump forces water up in pipes connected to spinning paddles. The forced water makes paddles spin like a sprinkler. Water comes out of small holes in paddles. Water is collected and used again until dishes are clean. Water is drained through a filter. Filter collects particles of food. Water was so hot that it evaporates for dry dishes. 
Output: water ,particles of food
Acid rain makes waters acidic. Causes them to absorb aluminum from soil. The water runs off from the soil into lakes, streams, etc. Fish and their eggs die. Frogs and plants die. Insects and other wildlife die. The ecosystem is out of balance, causing further problems. 
Output: water ; acidic water ,aluminum ,fish and their eggs ,frogs and plants ,insects and other wildlife
The coal is placed in a heater. The coal is super heated. The heat is connected to a boiler. The boiler is full of water. The heat turns the water into steam. The steam turns a generator. The generator produces the electricity. 
Output: coal ,heat ,water ,steam ,generator ,electricity
Movements of tectonic plates causes the creation of volcanoes. These volcanoes erupt. Volcanic mountains are formed from the eruption. Sometimes tectonic plates crash into one another or ride over one another. These plates sometimes fold and buckle, which forms Fold Mountains. Sometimes fault blocks are raised or tilted, and they form Block Mountains. 
Output: block mountains ,fold mountains ,tectonic plates ,volcanic mountains ,volcanoes
Snow falls in an area for a very long time. The snow builds up for a very long time. The snow starts to become packed very firmly. The snow becomes something that's more like ice. Air pockets in the mass continue to grow smaller. The mass becomes solid and heavy enough to be called a glacier. The glacier moves because of gravity. 
Output: glacier ,snow ,mass
Something happens to produce a sound. The sound travels in waves. The sound waves hit an object. The object absorbs some of the sound waves. Some of the sound waves bounce off of the object. The reflected sound waves can be heard, though they have slightly different properties than the original sound. The sound continues to bounce off of things and produce echoes until it is totally absorbed or dissipated. 
Output: sound ; sound waves ,echoes
You must decide the purpose of the satellite. You must draw up a plan to what kind of orbit the satellite will travel. You make preparations for the rocket that will travel into space. Prepare the crew that will send it there. You begin the countdown date for the rocket. And then you send the rocket carrying the satellite into space. Once in orbit the satellite will be placed where it was planned. 
Output: satellite ,rocket
Coal is mined out of the ground. Coal is pulverized into fine powder. The coal is mixed with hot air. The coal and hot air are blown into a boiler. The coal and hot air burn over a fire. Highly purified water is pumped through pipes in the boiler. The water turns into steam. The steam presses against turbines. The turbines spin. Electricity is produced. 
Output: coal ,hot air ,water ,steam ,electricity
You take some paper. The writing tools. You write a message describing what's on your mind. You put the letter into an envelope. You take the letter to the post office. Send it to its recipient. 
Output: paper ,writing tool ,message ,letter
Sugar enters the body. Bloodstream. The pancreas. Insulin lower sugar levels. Bloo sugar goes back to normal. 
Output: sugar
Greenhouse gases are released into the air by human activities. The earth changes energy from the sun into heat. Heat rises from the ground. Greenhouse gas molecules in the atmosphere prevent the heat from going into space. The temperature of the earth increases. The temperature continues to rise and melts the polar ice caps. The temperature rises even faster. 
Output: greenhouse gas ,air ,earth ,energy from sun ,heat ,greenhouse gas molecules ,polar ice cap
A male and female bird mate. The female lays eggs. The eggs are incubated by the parents, by sitting on them, for weeks. The bird hatches from an egg. The parents feed them as the continue to grow. Develop flight feathers. The parents teach them to fly. After learning to fly they leave the nest to live on their own. The next year they breed beginning the cycle again. 
Output: eggs ,bird ,flight feathers
Body temperature rises. The brain tells blood vessels to dilate. The sweat glands become active. Moisture is released from the pores. The moisture evaporates. The evaporation causes cooling. 
Output: body ,brain ,blood vessels ,sweat glands ,moisture
Electricity comes into the computer from the plug. The electricity runs the components in the computer. Electricity turns the fan to keep the components cool. Heat is released from the computer. Electricity runs the computer's display. Light is formed from the electricity. 
Output: electricity ,heat ,light
The flu virus has receptors, which are like viral Velcro, on the surface of the virus particle. The receptors will lock onto a target cell using these chemical receptors on the surface, which docks onto the cell surface. The receptors  then go into the cell. The receptors use it like a factory. The receptors take it over and make it produce thousands or in some cases millions of copies of new viruses. The copies come streaming out of the cell. The copies infect other cells to make more viruses, or they escape from the body and infect a new victim. 
Output: receptors ,copies
Techtonic plates in the earths crust move. Movement creates fissures. Upheavals in the crust. Fissures allow lava to erupt into volcanoes at the surface. Volcanoes erupt, accumulating lava, forming mountains. Upheavals in the crust become their own mountains. 
Output: tectonic plates ,fissures ,upheavals in the crust ,lava ,volcanoes ,mountains ,their own mountains
You find an empty ice cube tray. You fill the tray with warm water. You carefully place the tray on an even surface in a freezer that is at least 32 degree Farhenheit, the freezing point of water. The water begins to get colder until it starts to freeze solid. The water expands as it freezes, one of the few liquids that has greater volume as a solid. Because you used warm water, the gasses in the water had evaporated out, so you will have nice clear ice cubes without cracks from the trapped gasses. 
Output: warm water ,ice cubes
Food enters the body. The food is broken down. Sugars from the food enter the bloodstream. Blood sugar must be within a particular range to avoid damaging many organs. Sometimes the brain tells the pancreas the blood sugar (glucose) is too low. The pancreas releases glucagon to change the blood sugar to a better level. Sometimes the brain tells the pancreas the blood sugar (glucose) is too high. The pancreas releases insulin to change the blood sugar to a better level. 
Output: food ,sugars ,blood sugar ,glucagon ,insulin
Solar panels actually comprise many, smaller units called photovoltaic cells. Photovoltaic simply means they convert sunlight into electricity.). Many cells linked together make up a solar panel. Each photovoltaic cell is basically a sandwich made up of two slices of semi-conducting material, usually silicon : . Manufacturers "dope" silicon with other materials, giving each slice of the sandwich a positive or negative electrical charge. This adds extra electrons, with a negative charge, to that layer. Meanwhile, the bottom layer gets a dose of boron, which results in fewer electrons, or a positive charge. This all adds up to an electric field at the junction between the silicon layers. When a photon of sunlight knocks an electron free, the electric field will push that electron out of the silicon junction. A couple of other components of the cell turn these electrons into usable power. 
Output: sunlight ,electrictiy ,solar panel ,electric field
Dissolution of limestone forms caves. Rain gets carbon dioxide from the air. When rain goes into soil it creates an acid. The acid dissolves the limestone along cracks. Some will dissolve enough to form caves. 
Output: carbon dioxide ,rain ,acid ,limestone ,caves
Carbon dioxide from the air passes through small pores (holes) in the leaves. These pores are called stomata. Water is absorbed by the roots. It passes through vessels in the stem on its way to the leaves. Sunlight is absorbed by a green chemical in the leaves. 
Output: carbon dioxide ,water ,sunlight