Threats from Climate Change
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As humans burn more and more fossil fuels, the amount of greenhouse gases–such as carbon dioxide–in the atmosphere rises. Most scientists agree: The added CO2 exaggerates the greenhouse effect, leading to a warmer world–and potentially big changes for the planet.
Greenhouse Effect
The sun’s rays pass through the atmosphere, hitting Earth’s surface. The planet radiates the heat as infrared rays. Some of this heat energy escapes into space. The rest is trapped by gases in the atmosphere only to heat the Earth’s surface again.
Rising Sea Levels
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As Earth heats, glaciers melt and seawater warms and expands. Result: Sea levels have already risen by 10 to 25 cm (4 to 10 in.). Scientists fear that’s just the beginning.
Shrinking Arctic Ice Cap
Like an ice cube melting in the summer heat, Earth’s polar ice caps have begun to shrink. Researchers predict more dramatic melting in the future.
- Teacher Store
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Let's Find Out's Big Box of Science
The Teacher Store 
Let's Find Out's Big Box of Science
Children will explore the parts of a flower, the life cycle of a frog, different dinosaur species, and other early childhood science investigations through simple visual organizers.
Themes include: Life Cycles, Animals, Plants, Environment, Health & Nutrition, Making Things, Physical Science
$39.95
Supplementary Collection | Grades Pre-K-1
Grades Pre-K-1 $39.95
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The Magic School Bus® Chapter Books: Penguin Puzzle
The Teacher Store 
The Magic School Bus® Chapter Books: Penguin Puzzle
by Judith Bauer Stamper and Ted EnikThe popular and information-filled Magic School Bus stories are now offered in chapter book format. Loaded with science information and humor, these are sure to be a hit with anyone who's the least bit curious about bats. So take a seat behind the Friz!
$4.99
Paperback Book | Grades 3-5
Grades 3-5 $4.99
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