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SC.D.1.2.1: Erosion
From the beaches of Florida to the mountains of California, learn how wind, water, ice and gravity can erode big rocks into smaller rocks, and eventually into soil.
SC.D.1.2.2: 75% Water
75% of the Earth’s surface is water., but that only scratches the surface, as Robert Krampf dives into this deep subject.
SC.D.1.2.3: The Water Cycle
Have you ever really thought about the water cycle, and how old that glass of water really is?
SC.D.1.2.4: Continuous Change
Just as we change as we age, the Earth changes too, wearing away in some places and building back up in others.
SC.D.1.2.5: Fast and Slow Change
From earthquakes that last seconds to continental drift that takes millions of years, the Earth changes in many ways.
SC.D.2.2.1: Recycle
With Americans producing 600,000 tons of garbage a day, it is important to look at what we throw away.
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