

Build your vocabulary! We add new words for each issue.

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Oil: © S. Compoint-UNEP/Peter Arnold, Inc.
Gecko: © Casey K. Bishop/Shutterstock
Vesuvius: Martin Gray/National Geographic Image Collection
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Oil Oil fuels your world. Yet this natural resource is disappearing fast.

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Lizards Some lizards have horns. Some lizards walk on water. Others squirt blood. These are just a few of the wacky ways lizards stay safe. Learn more about these great escape artists on page 2 of our Jan.-Feb. 2008 issue.
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Living With a Volcano About 2,000 years ago, a volcano called Vesuvius roared to life. Ash and rock shot into the air. The town of Pompeii was buried by the eruption. Dig through the ash on page 8 of our Jan.-Feb. 2008 issue to learn about this famous disaster.
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