Polar Bear, Why Is Your World Melting?

Polar Bear, Why Is Your World Melting?

by Robert E. Wells


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In the Arctic, the summer ice is melting, making it hard for polar bears to survive. Why is the world getting warmer? The heat of the sun is trapped by the "greenhouse" gases that surround Earth--carbon dioxide, methane, nitrous oxide, and water vapor.

Product Details

ISBN-13: 9780807565995
Publisher: Whitman, Albert & Company
Publication date: 09/01/2008
Series: Wells of Knowledge Science Series
Pages: 32
Sales rank: 524,075
Product dimensions: 10.10(w) x 6.80(h) x 0.20(d)
Age Range: 4 - 8 Years

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Polar Bear, Why Is Your World Melting? 1 out of 5 based on 0 ratings. 1 reviews.
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