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By XKCD
This small infographic shows the thickness of see ice up against famous city skylines. Notice how much bigger the ice sheets are than the cities!
Grade Level   4 5 6 7 8 9 10 11 12
Image Collections Teaching Media
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2
Earth's climate is a complex system controlled by many factors. This Click and Learn will examine the two most important factors: solar radiation and the composition of Earth's atmosphere.
Grade Level   K 1 2 3 4 5 6 7 8 9 10 11 12
Teaching Media Videos or Animations
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3
To describe Earth's vast history, scientists use a geologic timescale. They divide it into long segments of time called eras. Each era is further divided into periods. Working in a small team, you will create a poster presentation about one of the periods in Earth's history. You can use classroom...
Grade Level   6 7 8 9 10 11 12
Classroom Activities Curricula and Instruction
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