Build your vocabulary! We add new words for each issue.
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Earth Day art: Steve McCracken
Starfish: © Brandon Cole
Fossil: © Shoshannah White/Aurora Photos
Kite: © Michael Kappeler/AFP/Getty Images
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Celebrate Earth
Find out how Earth Day started and how this special day has helped the planet.
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Nature's Transformers
Many young animals' bodies look different from adult animals. They eat different foods and live in different places. As they grow, they go through big changes. Explore the world of "Nature's Transformers" on page 2 of the April 2008 issue.
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Fossil Facts
Imagine a scorpion taller than a person or a cockroach as big as a small dog. These huge creatures aren't from science fiction. They lived here on Earth. We know about them from fossils. Find out what else fossils can tell on page 12 of the April 2008 issue.
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Kites
Would you like to build a time machine? Paper, sticks, glue, string, and a strip of fabric are all you need. That's because a kite connects you to the past. It also connects you to kite fliers around the world. "Take Flight With Kites" on page 18 of the April 2008 issue.
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