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The ATSR Project Antarctic: B-15 Iceberg - One of the largest icebergs ever seen. ATSR-2 has been used to track a large iceberg which broke away or calved from the Ross Ice Shelf in the Antarctic. The iceberg, at nearly 300km in length and 40km in width, was one of the largest ever seen at the time of its formation in ...
Brownian motion is the random motion of particles in a liquid or a gas. The motion is caused by fast-moving atoms or molecules that hit the particles. Brownian Motion was discovered in 1827 by the botanist Robert Brown. In 1827, while looking through a microscope at particles trapped in cavities inside pollen grains in...
Without the writings of Edward Huggins, we would know much less about life at Fort Nisqually, a Hudson’s Bay post in Pierce County in the mid-19th century. He knew this history because he had lived it. Huggins was born to Edward and Ellen Chipp Huggins on June 10, 1832, in London’s Southwark borough. He grew up in pove...
DK Science: Road Vehicles Vehicles use engines of different kinds to move people and cargo from place to place. Most cars and motorbikes have petrol engines, but vans and trucks use larger diesel engines. A diesel engine produces more power than a petrol engine by compressing the air and fuel much more. Petrol and dies...
The term natural disaster usually refers to a catastrophic event resulting from a natural process, such as a storm or a volcanic eruption. Natural disasters can severely impact human society, causing extensive fatalities and injuries. Destruction of homes and businesses bring both a personal and an economic toll. In a ...
Lesson Plans A3: Writing numbers from 0 to 20 Lesson Seeds A1: Last man standing Lesson Seeds A1: Nearby teens game Lesson Seeds A2: Pick a number Lesson Seeds A2: Put them in order Download Seeds, Plans, and Resources (zip) Content Emphasis By Clusters in Grade PK Progressions from Common Core State Standards in Mathe...
Class Central Tips Learning statistics can be a daunting experience. There is a plethora of statistical concepts to master and many of them come with a hefty dose of mathematical notation. The goal of the present course is to develop a clear path through the conceptual forest and to explain each concept both in its nar...
This is a worksheet to practice story tenses: past simple, past perfect and past continuous. It suits intermediate level. It includes two tasks. The first task includes 5 sentences to be completed by the correct form of the infinitive verb given between brackets. the second is a brief story with incompleted sentences. ...
The United States experienced major waves of immigration during the colonial era, the first part of the 19th century and from the 1880s to 1920. Many immigrants came to America seeking greater economic opportunity, while some, such as the Pilgrims in the early 1600s, arrived in search of religious freedom. Why did immi...
These comprehensive literature study unit studies are available in either book or ebook formats. Both are reproducible for classroom or family use. Most units cover one novel, although there are a few that address a series by a single author or two or more books on a single theme. Titles all begin with "A Guide for Usi...
Bullying and Cyberbullying: What Can Schools Do? Bullying and Cyberbullying: What and How? Cyberbullying means using technology to bully others. Like regular bullying it may involve denigrating insults, harsh judgments, threats, and lies or misrepresentations meant to embarrass another. It can also involve posing as an...
The following article provides information regarding the structure and functions of various cell organelles belonging to the eukaryotic cell. Eukaryotic cells are present in complex living organisms like animals, humans, and plants. They formed as a result of evolutionary changes that took lace in the prokaryotic cells...
Teacher Introduction Activities Teachers often have to step in to help their students get to know each other. Whether it's on the first day of the school year or on a day when a new student joins your class, you want to make sure classmates feel comfortable with one another. To help create a friendly environment, have ...
In the future, tiny machines may swim through our bloodstream repairing damage, attacking invaders, or taking real-time readings. We might even model such machines on biology. But biological cells are incredibly complex microscopic machines—and the truth is, we’re only just now beginning to understand exactly how they ...
The Apollo astronauts knew that moon dust was troublesome stuff. Now that dust could limit our ability to find cracks in Einstein’s general theory of relativity. Many of our best tests of relativity come from lunar ranging experiments. Several times a month, teams of astronomers from three observatories blast the moon ...
There are a number of ways to prevent unauthorized access, or loss including: access controls, encryption, firewalls, antivirus programs, and backups. Once a user has been authenticated, the next step is to ensure that they can only access the information resources that are appropriate. This is done through the use of ...
East vs. West: Why earthquakes are felt differently on either side of the US While you may think quakes are a western US problem, some of the largest temblors in US history have happened in the East According to the U.S. Geological Survey, there are about 20,000 earthquakes each year around the world. In the U.S., a ma...
TORONTO – A research team out of Western University has helped find evidence of past microbial life in a German meteorite crater that they hope will help scientists find evidence of past life on Mars. The crater, Nordlinger Ries, is about 14 million years old, relatively young when it comes to meteorite craters. “This ...
The first instance of recording Scripture occurs at Moses’s hand at the covenant’s inauguration between YHWH and Israel (Exod. 24:4–8). Scholars mostly agree that the Book of the Covenant mentioned there entailed chapters 21–23 of Exodus, but opinions vary.1 Moses’ upbringing in Egypt explains how he became a scribe in...
Ages: 4 and up Grades: PreK and up How It Works: Individual picture cards can be used on their own or as a complete picture scene set to target many language goals including sentence formulation, use of nouns, verbs and verb tenses, pronouns, adjectives, prepositions, temporal concepts, main idea, exposure to basic con...
ValueEthical & Social LocationIndoor, Online, Outdoor Recommended group size10-20 Recommended time / Minutes30-60 \|Overview\|\|Generally, dialogue is a conversation between two or more people; a conversation, negotiations between two or more groups to solve a problem, to resolve disagreements, etc. In philosophy, a dialo...
You’ve seen it on the news: Wildfires continue to pop up on the West Coast as drought conditions in states such as California, Oregon, and Arizona persist, and the devastating Australian bush fires are finally subsiding. Many scientists and mainstream news sources are quick to draw false conclusions that climate change...
- 1 What date does the Electoral College vote in 2020? - 2 How are Electoral College votes distributed? - 3 When was the first electoral college vote? - 4 Does popular vote determine electoral vote? - 5 How are electoral votes per state? - 6 Is the Electoral College in the original Constitution? - 7 Has any president r...
The spread of infectious disease through bugs and pests can be largely attributed to two specific types: ticks and mosquitoes. The prevalence of disease-ridden pests is largely dependent on the climate of the area, meaning changes in the climate can affect the chances of being infected by these pests. Here is a breakdo...
One of the unique aspects of Hudson River Park is that it is made up of 400 acres of water—the Hudson River! To protect these waters, HRPK scientists pay close attention to environmental conditions and regularly monitor the River. You can check out real-time updates on Hudson River conditions through the Hudson River E...
The term “outcome” is used extensively in the world of business, industry, and medicine. Business and industry set outcome expectations and work to achieve them. The medical field has used an outcomes based model for many years for teaching, testing, and medical practice. The outcomes and outcome-based assessment conce...
This Month in History: ULTRA's Big Break During World War II Nazi Germany primarily encoded its messages through the use of what was known as the "Enigma" machine. Enigma’s use by the Wehrmacht stretched back to the early 1930s and originated from a design created by Hugo Alexander Koch in the Netherlands. Although hea...
Democracy is the government of the people, by the people and for the people (as Abraham Lincoln defined it). It was invented by the ancient Greeks and has spread widely in western nations since the English Civil War in the mid 17th century. Democracy means the people rule and can do anything they want by majority rule....
Mass statelessness emerged as a global phenomenon after the First World War, which broke the surviving dynastic empires of Europe and the Middle East and replaced them with nation-states. This course investigates the history and meaning of statelessness in the period from 1914 to 1945. The course begins with the peace ...
(Lansing State Journal, Dec. 18, 1991) Question submitted by P.W. Anderson of East Lansing. Superconductivity describes a state that certain materials reach when cooled below a point called the critical temperature, Tc. Superconductivity is characterized by two main properties: absence of electrical resistivity and the...
The exact location of Curiosity on the surface of Mars is determined using data transmitted from its antennas as well as the space probes that orbit the red planet. It is very unlikely that these systems would fail but in such an eventuality there would be an alternative for determining the location of the rover: 'ask ...
Stay informed with daily news and our newsletters!Learn more Level(s): Grades 11 - 12 Author: This unit was created by Carol Wells as part of a Media Education course taught by John Pungente at the Faculty of Education, University of Toronto, 1993. This lesson introduces students to the phenomenon of the“blockbuster” m...
Reviewed by Rita Hoots Those minuscule, invisible, whirling electrons possess amazing powers that enable them to bind elements together, however, their abstract imperceptibility sometimes makes their functions difficult for students to comprehend. In this straightforward presentation on chemical bonding, the narrative ...
The Cell Project: Clay Models Building Models Cells with Clay In the Clay Cell activity, students build 3-d models of cells, organelle by organelle. Once the clay dries, the cells are sliced and the resulting cross-sections are examined. This activity was developed with Crayola's Model Magic. It works well for mixing c...
Geiger and Marsden 1907 Rutherford left McGill University in Canada and moved to the University of Manchester, where he began work with Hans Geiger. continued to investigate the scattering of alpha particles. The particles came from a small sample of radon-222, a radioactive gas produced when the element radium decays....
The Moon has a stabilizing effect on Earth. Scientists have pondered whether such a large moon is also necessary for complex life. Image credit: NASA Scientists have long believed that, without our moon, the tilt of the Earth would shift greatly over time, from zero degrees, where the Sun remains over the equator, to 8...
June 1, 2011 University of Michigan astronomers examined old galaxies and were surprised to discover that they are still making new stars. The results provide insights into how galaxies evolve with time. U-M research fellow Alyson Ford and astronomy professor Joel Bregman presented their findings May 31 at a meeting of...
Harriet Tubman is well known for risking her life as a “conductor” in the Underground Railroad, which led escaped slaves to freedom in the North. But did you know that the former slave also served as a spy for the Union during the Civil War and was the first woman in American history to lead a military expedition? Duri...
Lasers emit highly concentrated, amplified light. Usually it takes a complex array of crystals, gels or gases to amplify light particles, known as photons, as they bounce around between mirrors inside laser machines. But now scientists have found another way: using engineered living cells that can perform the feat. The...
(Phys.org)—In cold regions on earth, negative temperatures on the Fahrenheit or Celsius scale can often occur in winter; in physics, however, they were so far impossible. On the absolute temperature scale that is used by physicists and also called Kelvin scale, one cannot go below zero – at least not in the sense of ge...
- High School - Number & Quantity - Statistics & Probability - Language Arts - Social Studies - Art & Music - World Languages - Your Life Solve Problems Involving Measurement And Conversion Of Measurements From A Larger Unit To A Smaller Unit. 4.MD.1Know relative sizes of measurement u...more Know relative sizes of mea...
Strip mining is most often used on the plains. Large equipment, such as draglines, removes the overlying soil and rock (overburden) to expose a relatively horizontal coal seam. Overburden is placed in piles behind the area being mined. When extraction is complete, the overburden is replaced and the land is returned as ...
Language and land are intricately connected. Indeed, languages and dialects tend to get their names from the regions where they are spoken. What happens, then, when a people has no land of its own? For most of Jewish history, this was the linguistic situation of the Jews. Aside for a few hundred years during the first ...
Scientists have discovered how bacteriophages - viruses that infect bacteria - manage to pierce the bacterial membrane: with an iron spike. When they crystallized this smaller protein fragment, the x-rays were finally able to resolve its structure, and from this the team had the very first picture of the tip of the spi...
Learning Math: Measurement A course for elementary and middle school teachers, examines some of the major ideas in measurement. You will explore procedures for measuring and learn about standard units in the metric and customary systems, the relationships among units, and the approximate nature of measurement. You will...
Level A Student Workbook The aim of this series is to teach the student the fundamental principles of phonics in a logical sequence, along with consistent drill and repetition of these concepts to insure comprehension. These courses cover short and long vowels, consonants, and consonant blends, as well as essential wor...
Student's Corner - Nuclear Reactors There Are Two Types of Reactors in the United StatesThe Pressurized Water Reactor (PWR) Pressurized Water Reactors are known as "PWRs." They keep water under pressure so that it heats but does not boil. Water from the reactor and the water that is turned into steam are in separate pi...
Featured Image - (04/15/2008) Peek Crater: Potential Future Lunar Landing Site Peek crater is a small (diameter = 12 km) crater in the northern part of Mare Smythii within Smythii basin. Smythii basin is an ancient basin on the eastern limb of the Moon. The basalts filling this basin are thought to be very young, being...
MISSISSIPPI MOUND BUILDERS ANCIENT INDIAN CIVILIZATION Mississippi Mound Builders Mississippi Mound Builders were not limited to just the Mississippi River Valley. Ancient civilizations built mounds in a large area from the Great Lakes to the Gulf of Mexico and from the Mississippi River to the Appalachian Mountains, b...
The Rapid Ascent of Basalt Magmas by Andrew A. Snelling, Ph.D. It is now well established that the earth's upper mantle is the source of the basalt magmas erupted by many volcanoes as lava flows1--for example, Kilauea Volcano, Hawaii. The earth's crust is predominantly of a granitic composition, whereas the mantle is c...
How did millions of mammoth fossils form? Q: ‘It has been guesstimated that there are the remains of some six million woolly mammoths in the Arctic Circle alone. My neighbour states that it would be impossible for such a number to have multiplied in the approx. 1700 years from Creation to the Flood.’ — J.E. A: First, s...
Only 250 miles separates the island of Madagascar from the southeast coast of Africa. The short distance between the two land masses traditionally led the outside world to assume that the native inhabitants of Madagascar – known as the Malagasy – originally came from the west, probably from the present day southeast Af...
The parallel rules are used to plot courses, bearings, and celestial lines of position. By “walking” the rules across the chart, the navigator transfers the desired angle from the compass rose on the chart to the part of the chart where the ship is, or vice versa. A pair of triangles can do the same thing, while course...
- ABOUT US Deforestation accounts for about a fifth of all global carbon emissions, second only to the burning of fossil fuels, according to the United Nations Framework Convention on Climate Change (UNFCCC).1 But ever since the Kyoto Protocol was drafted in 1997, countries have been divided over how to incorporate for...
Researchers have pinpointed that earth’s recovery from the prehistoric crisis of the greatest mass extinction has taken long time of about 10 million years. Our planet, due to a great cataclysm that occurred 250 million years ago, experienced mass extinction with only 10 percent of the plants and animals surviving. Acc...
Source: National Institute of Standards and Technology Physics Laboratory Not until somewhat recently (that is, in terms of human history) did people find a need for knowing the time of day. As best we know, 5000 to 6000 years ago great civilizations in the Middle East and North Africa initiated clock-making. With thei...
Nov. 22, 2010 Jump ropes are used by kids for fun and by athletes for training. But what about the underlying physics? How do jump ropes work? Can important engineering principles be studied? Jeff Aristoff and Howard Stone of Princeton University have built themselves a robotic jump rope device that controls all the ro...
February 5th is Digital Learning Day – a day that celebrates effectively using technology to strengthen a student’s learning experience and provide opportunities for individualized instruction. We asked one of our expert instructional math coaches, Ed L., to share a fun lesson idea to celebrate! Check out his suggestio...
The change from ancient to medieval costume began (c.400) with the disintegration of the Roman Empire. Roman attire, which had previously assimilated the elaborate features of Byzantine dress, was gradually affected by the austere costume of the barbaric invader. Both men and women wore a double tunic; the under tunic,...
includes one or more holidays that are rooted in its past. In the United States, for example, one of the most celebrated holidays is Thanksgiving. Annual traditions typically include: dinners with roasted turkey, potatoes, and pumpkin pie; decorations with multi-colored Indian cob corn; and, school plays re-enacting th...
The aging of star clusters is linked more with their lifestyle than with how old they actually are, according to a new NASA/ESA Hubble Space Telescope study coauthored by Steinn Sigurdsson, professor of astronomy and astrophysics at Penn State. "Our observations of star clusters have shown us that, although they all fo...
The History of Martin Luther King Day Who originated the idea of a national holiday in honor of MLK? by Shmuel Ross and David Johnson It took 15 years to create the federal Martin Luther King, Jr., holiday. Congressman John Conyers, Democrat from Michigan, first introduced legislation for a commemorative holiday four d...
Since the retreat of the great glaciers about 10,000 years ago, Aboriginal populations have inhabited the BC landscape. BC's first people may have journeyed to the region from Asia via a land bridge across the Bering Sea. As the ice receded, forests advanced and fluctuating sea levels exposed the temporary land passage...
TenMarks teaches you how to find and evaluate roots. Read the full transcript » Learn to Evaluate Roots In this lesson, let's learn how we find roots. Roots are the following, if we take a number and multiply it by itself, we get the product, 7x7 is 49. So a number which when multiplied by itself gives a product. Seven...
What is an ependymoma? An ependymoma is a tumor that arises from the ependymal cells, which line the brain and spinal cord. Over 90 percent of ependymoma originate from the brain and 10 percent from the spinal cord. Ependymomas rarely spread (metastasize) from their site of origin. Ependymomas are classified as either ...
Dec. 29, 2000 A tiger's intimidating roar has the power to paralyze the animal that hears it and that even includes experienced human trainers. Elizabeth von Muggenthaler, a bioacoustician from the Fauna Communications Research Institute in North Carolina, presented her research at the Acoustical Society of America mee...
Illinois Learning Standards Stage D - Math Students who meet the standard can demonstrate knowledge and use of numbers and their many representations in a broad range of theoretical and practical settings. (Representations) - Represent, order, and compare decimals to demonstrate understanding of the place-value structu...
- What do we learn? - Schooling America and Current Events - Lego Pulley Activity: One of the lifts just broke down in a critical area at the Big Dig. It will take a week to repair the lift, and construction must go on. Bags of concrete that weigh 75 pounds each must be lifted from the ground to a platform 100 feet in ...
Growing Independence and Fluency Rationale: It is important for children to learn to read fluently and expressively. When children learn to read with expression, they become more confident readers. This lesson will help children learn to read with expression through using whole texts. Materials: chalk, chalkboard, one ...
Curriculum Terms and Concepts Curriculum Terms and Concepts: Elements of a complete Teaching Guide or Curriculum Plan Familiarize yourself with these elements. Each element is linked to an example of that element in the Sample Teaching Guide The Sample Teaching Guide will open in a new window. You might have to switch ...
Note to teachers The overall goal in this exhibit is to give students and teachers a glimpse into a moment of discovery. The discovery of optical pulsars may be the only example of a significant discovery documented by a tape recorder left running for other purposes. The listener is privileged to hear an event as it ha...
When it comes to geography, we can identify maps using the following 5 best points; Location :- Where are things located? A location can be specific for example, it can be stated as coordinates of longitude and latitude or as a distance from one place to another place or general (it's in the Northeast). The Latitudes a...
Adolescence is the stage between childhood and adulthood. Puberty marks the beginning of adolescence and is the period of time when males and females become physically able to reproduce. Secondary sex characteristics begin to appear, such as breasts in the female and body hair and muscles in the male. Physical changes ...
WHAT do you call a fish without an eye? Clue: the answer isn’t “fsh”. At least, not in the darkest depths of the UCL Anatomy building, where the Zebrafish Research groups keep many thousands of these tiny striped fish. Aside from fish carrying mutations that lead to their offspring missing part of their eyes or their b...
In Johnson v. McIntosh (1823), the Court resolved the question of territorial possession and the theory under which it worked. That decision continued the long-practiced European tradition of claiming lands by right of discovery as long as they were unoccupied by Christian peoples. When the Spanish conquered the Americ...
Our Government is formed from a democratically elected House of Representatives. The Government advises the Sovereign (our head of State). By convention, the Sovereign, the source of all executive legal authority in New Zealand, acts on the advice of the Government in all but the most exceptional circumstances. This sy...
CONCEPT: Work involves the movement of objects through a distance. CONTENT OBJECTIVE: 1A2.00 To understand work and explain the kinds of motion used in doing work INSTRUCTIONAL OBJECTIVES: The learner will: 2.01 observe and describe examples of work. 2.02 describe the relationship of work to force. 2.03 classify forces...
Have Nasa scientists found 'trees' on Mars? At first glance this hilly desert landscape appears to show islands of trees casting shadows on reddened soil. But this strange winter wonderland of dusty dunes, icy rivulets and dark outcrops lies 62 million miles away on Mars. And the 'trees,' pictured by a Nasa probe, are ...
(1792-1822) Although he died before he was 30, the English lyric poet Percy Bysshe Shelley created masterpieces of Romantic poetry. Among them are such lyrics as 'The Cloud', 'To a Skylark', and 'Ode to the West Wind'. The critic Matthew Arnold characterized Shelley the reformer as "a beautiful and ineffectual angel, b...
An international team of astronomers has used nearly three years of high precision data from NASA's Kepler spacecraft to make the first observations of a planet outside our solar system that’s smaller than Mercury, the smallest planet orbiting our sun. The planet is about the size of the Earth's moon. It is one of thre...
From "silent geometry" to logic puzzles, from tangrams to myths, legends and folktales, Rosa Lee Carter Elementary students will once again be using many different thinking skills to stretch their brains and achieve higher levels of thinking. In order to help students achieve these goals, the SEARCH curriculum spirals ...
Skip to Navigation ↓ An important part of astronomy is knowing where to point a telescope and keeping track of the positions of objects in the sky. To to this, astronomers use angular measure. An angle is the opening between two lines that meet at a point and angular measure describes the size of an angle in degrees, d...
When a heavy atom (such as uranium or plutonium) undergoes fission, it splits into two lighter fission products. This splitting process also yields two or three neutrons, which can cause other heavy atoms to fission, as well as a huge amount of energy, which nuclear engineers convert into electric power. The two fissio...
From Ohio History Central War History Commission General Files Throughout much of Ohio's history, women have not had the same rights that men have had. Even after women gained the right to vote with the passage of the Nineteenth Amendment to the United States Constitution, women were still not treated equally when it c...
Act: Legislation that has passed both Houses of Congress and has been either approved by the President, or passed over his veto, thus becoming law. Also used technically for a bill that has been passed by one House of Congress. Alien: A person residing under a government or in a country other than that of one's birth w...
Three Types of Learning Styles There are three major types of learners: visual, auditory, and tactile/kinesthetic. Each person has a learning style that is best for his intake and comprehension of new information. Visual learners generally think in terms of pictures and learn best from visuals and handouts. Auditory le...
On this day in 1777, the Continental Congress promotes Colonel Ebenezer Learned to the rank of brigadier general of the Continental Army. Learned was an experienced military man who served the British during the French and Indian War. In 1757, he contracted smallpox at Fort Edward near Lake George in New York and spent...
To escape prying predators, fragile fauna often become masters of the art of disguise. Take the leaf insects of Southeast Asia: They so strongly resemble leaves that they blend in with the surrounding foliage. Because the 37 species of leaf insect now live in one corner of the planet, entomologists had assumed that the...
The Leonid Meteor Shower Meteors: Showers and Storms Watching the sky at night, a casual observer may see from 3 to 5 sporadic meteors per hour. However, on some nights this number may increase markedly, and on projecting the paths of the meteors back we find that many appear to radiate from a very small area in the sk...
An equation is a mathematical statement, in symbols, that two things are exactly the same (or equivalent). Equations are written with an equal sign, as in The equation above is an example of an equality: a proposition which states that two constants are equal. Equalities may be true or false. Equations are often used t...
The way that humanity reacts to climate change may do more damage to many areas of the planet than climate change itself unless we plan properly, an important new study published in Conservation Letters by Conservation International’s Will Turner and a group of other leading scientists has concluded. The paper Climate ...
There are many places on Earth that have not yet been researched by man. Volcanoes, for instance, have been researched in depth, but no one has ever been inside an active volcano. NASA’s Jet Propulsion Laboratory (JPL) is best known for their outer space endeavours, but scientists have now developed a new robot capable...
The Scientific Method Long before the world accepted cold science and scientific investigation, issues and “truths” were determined through arguments. Sadly, arguments do not give assurance the truthfulness of a belief. One must have proof first before jumping to any conclusion. And proof is derived only after careful ...
Asthma is a chronic long-term lung disease that inflames and narrows the airways. Asthma causes recurring periods of wheezing, a whistling sound when you breathe, chest tightness, shortness of breath, and coughing. The coughing often occurs at night or early in the morning. Asthma affects people of all ages, but it mos...
Slope-stability or mass-movement problems occur where either sediment and/or rock and/or snow move downslope in response to gravity. Potential slope-stability problems exist wherever development has taken place at the base of Rockfall at Upper Island Cove An eight tonne block of stone sits on top of a car parked beside...
Here on Earth we have access to one of the most plentiful sources of power known to man – the sun. But how does solar power work? Around 70% of light from the sun makes its way to Earth – the rest is reflected back into space. Now we’ve learned to convert this energy into electricity using solar photovoltaic (or solar ...
Historically, there is no aspect of the Aztec culture that shocks us more than human sacrifice. As hard as it is for us to imagine it, imagine how the first conquistadors felt when they witnessed it for the first time. It left them completely horrified, and then some of their own men met the same fate. To their horror,...
Polly Cooper cooked up strength and perseverance for the American soldiers. Little is known about Polly Cooper's childhood, but we know for sure the she was born into the Oneida tribe. Polly Cooper contributed in the war by helping George Washington's sick, starving, and suffering soldiers. Cooper is known to be the mo...
DNA is a (bio)chemical way of storing genetic (biological) information. It is basically a long stretched-out molecule consisting of modules (nucleotides, or as they're often called: bases). There are only four modules in a DNA molecule and they are the language in which the information is stored. The four nucleotides o...
THE LIVING WORLD Unit Three. The Continuity of Life The attraction that holds the two DNA strands together is the formation of weak hydrogen bonds between the bases that face each other from the two strands. That is why A pairs with T and not C; A can only form hydrogen bonds with T. Similarly, G can form hydrogen bond...

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