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a meter stick is used to measure distance & speed is a measure of distance travelled by an object divided by time & a stopwatch is used for measuring time | speed can be determined by measuring the distance with a meter stick and dividing that by the measurement of time from the stopwatch |
speed can be determined by measuring the distance with a meter stick and dividing that by the measurement of time from the stopwatch & a calculator is used for dividing | the speed of an object can be measured using a meter stick, stopwatch, and calculator |
the speed of an object can be measured using a meter stick, stopwatch, and calculator & a toy car is a kind of object | the speed of a car can be measured using a meter stick, stopwatch, and calculator |
speed is a measure of distance travelled by an object divided by time & a meter stick is used to measure distance & a stopwatch is used to measure time | the speed of an object can be measured using a meter stick and a stopwatch |
the speed of an object can be measured using a meter stick and a stopwatch & a bicycle is a kind of object | the speed of a bicycle can be measured using a meter stick and a stopwatch |
being lost at sea is a kind of being lost & if a person is lost, then they need to travel to a location | if a person is lost at sea, then they need to travel to a location |
if a person is lost at sea, then they need to travel to a location & if a person needs to travel to a location, they need to direct themselves to that location | if a person is lost at sea, they need to direct themselves to a location |
if a person is lost at sea, they need to direct themselves to a location & the shore is a kind of location | if a person is lost at sea, they need to direct themselves to the shore |
the shore is a kind of location & if a person knows the cardinal direction of a location, and their own cardinal direction, then they can direct themselves to that location | if a person knows the cardinal direction of the shore, and their own cardinal direction, then they can direct themselves to the shore |
if a person knows the cardinal direction of the shore, and their own cardinal direction, then they can direct themselves to the shore & a compass is used for determining a person's cardinal direction | if a person knows the cardinal direction of the shore, and uses a compass to determine their cardinal direction, then they can direct themselves to the shore |
if a person knows the cardinal direction of the shore, and uses a compass to determine their cardinal direction, then they can direct themselves to the shore & a magnetic compass is a kind of compass | if a person knows the cardinal direction of the shore, and uses a magnetic compass to determine their cardinal direction, then they can direct themselves to the shore |
if a person is lost at sea, they need to direct themselves to the shore & if a person knows the cardinal direction of the shore, and uses a magnetic compass to determine their cardinal direction, then they can direct themselves to the shore | if a person is lost at sea, and shows the cardinal direction of the shore, then they can use a magnetic compass to direct themselves to the shore |
water is a kind of liquid & a graduated cylinder is used to measure the volume of a liquid | a graduated cylinder can be used to measure the volume of water |
if a unit for something is being measured, then it requires a measurement tool for measuring that something & milliliters ml are a metric unit used for measuring volume | measuring milliliters requires a tool for measuring volume |
measuring milliliters requires a tool for measuring volume & a graduated cylinder is used to measure volume of an object | measuring milliliters requires a graduated cylinder |
a sample is a kind of matter & a sample in a cylindrical container has a cylindrical shape and a fixed volume | the matter has the same shape as the container and fixed volume |
the matter has the same shape as the container and fixed volume & matter with variable shape changes shape in different container | the matter may have a variable shape and a fixed volume |
the matter has the same shape as the container and fixed volume | the matter may have a fixed shape and a fixed volume |
the matter may have a variable shape and a fixed volume & the matter may have a fixed shape and a fixed volume | the matter may have a fixed or variable shape and fixed volume |
matter in the solid phase has definite volume & matter in the solid phase has definite shape | matter in solid phase has definite volume and definite shape |
matter in the liquid phase has definite volume & matter in the liquid phase has variable shape | matter in the liquid phase has a variable shape and definite volume |
the matter may have a fixed or variable shape and fixed volume & matter in solid phase has definite volume and definite shape & matter in the liquid phase has a variable shape and definite volume | the matter may be in solid phase or in liquid phase |
to observe an object of small size requires the use of magnifying glass & the eyes of insects are very small in size | to observe the type of eyes insects have requires using a magnifying glass |
the insect is small in size & seeing small things is difficult | seeing small insect is difficult |
seeing small insect is difficult & magnifying glass is used to see small things by making objects appear bigger | magnify glass can be used to see insects by making insects appear bigger |
a bird is a kind of animal & a living thing is a kind of object & an animal is a kind of living thing | a bird is a kind of object |
a bird is a kind of animal & animals usually distance themselves from humans | birds usually distance themselves from human |
a bird is a kind of object & birds usually distance themselves from human | birds are distant objects |
birds are distant objects & binoculars can be used to observe distant objects | binoculars can be used to observe birds |
seeing small things is difficult & a fingerprint is small in size & magnifying makes seeing small things easier through using a magnifying glass | using a magnifying glass can help make seeing a fingerprint easier |
using a magnifying glass can help make seeing a fingerprint easier & a hand lens is a kind of magnifying glass | a hand lens can be used to see a fingerprint |
a ladybug is a kind of insect & an insect usually has a small size | a ladybug is small in size |
a ladybug is small in size & seeing small things with bare eyes is difficult | seeing a ladybug with bare eyes is difficult |
seeing a ladybug with bare eyes is difficult & magnifying glass is used to see small things by making objects appear bigger | magnifying glass can be used to see a ladybug by making it appear bigger |
magnifying glass can be used to see a ladybug by making it appear bigger & a hand lens is a kind of magnifying glass | a hand lens can help seeing the ladybug by magnifying the ladybug |
a hand lens can help seeing the ladybug by magnifying the ladybug & counting something usually requires seeing that something | a hand lens can help count the ladybugs |
a field is a kind of environment & an insect usually has a small size | an insect in a field is an example of a small thing in an environment |
an insect in a field is an example of a small thing in an environment & observing small things in an environment is difficult | observing an insect in a field is difficult |
observing an insect in a field is difficult & magnifying glass is used to see small things by making objects appear bigger | magnifying glass can be used to see an insect by making it appear bigger |
magnifying glass can be used to see an insect by making it appear bigger & a hand lens is a kind of magnifying glass | a hand lens can help seeing the insect by magnifying the insect |
counting something usually requires seeing that something & we need a tool to count the legs of an ant | to count the legs of an ant requires seeing the ant |
an insect usually has a small size & an ant is a kind of insect | an ant is small in size |
an ant is small in size & seeing small things is difficult | seeing an ant is difficult because an ant is small in size |
seeing an ant is difficult because an ant is small in size & magnifying glass is used to see small things by making objects appear bigger | magnifying glass can be used to see an ant by making it appear bigger |
to count the legs of an ant requires seeing the ant & magnifying glass can be used to see an ant by making it appear bigger | magnifying glass can be used to count the legs of an ant by making the ant appear bigger |
magnifying glass can be used to count the legs of an ant by making the ant appear bigger & a hand lens is a kind of magnifying glass | a hand lens can be used to count the legs of an ant |
length is a measure of distance from one end of an object to the other end of that object & a branch is a kind of object | the length of a branch is a measure of distance from one end of the branch to the other end |
the length of a branch is a measure of distance from one end of the branch to the other end & a meter stick can be used to measure the length | a meter stick can be used to measure the length of a branch |
a dime is circle in shape & diameter is a measure of length through the center of a circle | the diameter of a dime is a measure of length through the center of the dime |
the diameter of a dime is a measure of length through the center of the dime & a ruler is a kind of tool for measuring length | a ruler can be used to measure the diameter of a dime |
building a doghouse requires cutting materials into a fixed size & cutting a material usually requires measuring length | cutting a material when building a doghouse requires measuring length |
cutting a material when building a doghouse requires measuring length & a tape can be used to measure length | cutting wood when building a doghouse requires using a tape |
a ruler is used for measuring the length of an object & a butterfly is a kind of object | a ruler can be used to measure the length of a butterfly |
a ruler can be used to measure the length of a butterfly & a metric ruler is a ruler with metric units | a metric ruler can be used to measure the length of a butterfly |
food is a kind of substance & candy is a kind of food | candy is a kind of substance |
candy is a kind of substance & a thermometer is used to measure temperature of substance | a thermometer is used to measure the temperature of the candy |
miles mi are a imperial unit used for measuring length & yards yd are a imperial unit used for measuring length & feet (ft) are an imperial unit used for measuring length | ft, yd, and mi are imperial units used for measuring length |
ft, yd, and mi are imperial units used for measuring length & imperial units are not metric units | ft, yd, and mi are not metric units |
centimeter is usually used to measure short length & a string is short in length | centimeter is a better unit to measure the length of the string |
a desk is usually short in length & centimeter is usually used to measure short length | centimeter can be used to measure the length of a desk |
centimeter can be used to measure the length of a desk & measuring is used for describing an object | centimeter can be used to describe the length of a desk |
meters m are a metric / si unit used for measuring length & measuring is used for describing an object | meter is a unit used to describe the length of an object |
meters m are a metric / si unit used for measuring length & measuring is used for describing an object | meter is a unit used to describe the length of an object |
meters m are a metric / si unit used for measuring length & a classroom is usually measured in meter | meter is the si unit that can be used to measure a classroom |
an object is 35 gram & grams g are a metric unit used for measuring mass | 35 gram is the mass of that object |
a person puts a basket on a scale & the scale reads 2 kilograms for the basket | a person puts a basket on a scale and the scale reads 2 kilograms |
a person puts a basket on a scale and the scale reads 2 kilograms & kilograms kg are a metric / si unit used for measuring weight | the person is measuring the weight of the basket |
a large rock is usually heavy in weight & kilogram is usually used to measure heavy objects | kilogram can be used to measure the large rock |
gram is usually used to measure light weight object & fish is usually light in weight | gram can be used to measure the mass of the fish |
the lower the ph level of a substance, the stronger acid the substance is & acid is 0 to 6 in ph level which makes it acidic | an acid with a ph of 3 is a strong acid |
air temperature is a kind of temperature & degrees celsius is a unit for measuring temperature | degrees celsius is used to record the air temperature |
seconds is used to meausre a short amount of time & a toy car rolling down a hill is a short process | seconds should be used to measure the time of a toy car rolling down a hill |
liters l is a metric unit used for measuring volume & quarts qt is a imperial unit used for measuring volume | liter and quart are both unit used for measuring volume |
liter and quart are both unit used for measuring volume & 1 liter is equal to 106 quarts | the difference between liter and quart for measuring volume is small |
sugar is a kind of pure substance & water is a kind of substance & lemon juice is a kind of substance | water, lemon juice, sugar are three substances |
water, lemon juice, sugar are three substances & lemonade is made of water, lemon juice, and sugar | lemonade is made of at least three substances |
lemonade is made of at least three substances & an mixture is formed by two or more substances combined together physically | lemonade is a kind of mixture |
a carbonated beverage contains water and dissolved carbon dioxide & water is a kind of substance & carbon dioxide is a kind of substance | a carbonated beverage contains one substance dissolved in another substance |
a carbonated beverage contains one substance dissolved in another substance & a solution is formed by one substance being dissolved in another substance | a carbonated beverage is a kind of solution |
a carbonated beverage is a kind of solution & a solution is a mixture | carbonated beverage is a kind of mixture |
carbonated beverage is a kind of mixture & soda water is a kind of carbonated beverage | soda water is a kind of mixture |
computer chips often are made of silicon & solar cells often are made of silicon | solar cells and computer chips are made of silicon |
sugar is a kind of pure substance & water is a kind of substance & sugar dissolves in water when they are combined | sugar dissolves in water is an example of one substance dissolving in another substance |
sugar dissolves in water is an example of one substance dissolving in another substance & a solution is formed by one substance being dissolved in another substance | sugar dissolving in water will form a solution |
a compound is made of two or more elements chemically combined & a chemical compound is a kind of compound | a chemical compound is made of two or more elements chemically combined |
chlorine is a kind of element & sodium is a kind of element | sodium and chlorine are two elements |
sodium and chlorine are two elements & sodium chloride is always made of chemically combined chlorine and sodium | sodum chloride is made of two elements chemically combined |
a chemical compound is made of two or more elements chemically combined & sodum chloride is made of two elements chemically combined | sodium chloride is a kind of chemical compound |
water is a kind of substance & sugar is a kind of pure substance & sugar dissolves in water when they are combined | sugar dissolving in water is an example of one substance dissolving in another substance |
sugar dissolving in water is an example of one substance dissolving in another substance & a solution is formed by one substance being dissolved in another substance | sugar will form a solution when it dissolves in water |
sugar will form a solution when it dissolves in water & when one substance is dissolved in another substance then the molecules of that other substance exist in solution | sugar molecules exist in solution when it forms solution with water |
iron sulfide can be formed by heating a mixture of powdered iron and sulfur & iron sulfide is made of iron and sulfur | iron sulfide is made of a mixture of iron and sulfur being heated |
iron is a kind of element & sulfur is a kind of element | iron and sulfur are two elements |
iron sulfide is made of a mixture of iron and sulfur being heated & iron and sulfur are two elements | iron sulfide is made of two elements |
iron sulfide is made of two elements & a compound is made of two or more elements chemically combined | iron sulfide is a compound |
air is made of nitrogen, oxygen, carbon dioxide, water vapor, and argon & if two substances together form a mixture then those substances can be separated from one another by physical changes | air is a mixture |
juice is a kind of solution & a bottle contains juice | the bottle contains a solution |
salt is soluble in water & if something is soluble in something , then that something can be dissolved in something forming a solution | salt will dissolve in water and form a solution |
salt will dissolve in water and form a solution & the student mixed salt with water | salt and water will form a solution |
if something is soluble in something , then that something can be dissolved in something forming a solution & sugar is soluble in water | sugar will dissolve in water and form a solution |