Polar bears rely on sea ice to hunt seals, their primary food source. As climate change causes the ice to melt, polar bears are finding it harder to survive.
Why is melting sea ice a problem for polar bears?
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Photosynthesis is the process by which plants use sunlight to create food. During this process, they convert carbon dioxide and water into glucose and oxygen.
What do plants produce during photosynthesis?
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inches
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During World War II, many countries around the world were involved in a global conflict. The war lasted from 1939 to 1945 and reshaped the political landscape of many nations.
When did World War II take place?
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chess
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crunch
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scratch
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boom
Lose 50 points!
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fairy
Take points!
5
10
15
20
25
rocket
Go to first place!
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lifesaver
Give 10 points!
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The mountains were covered in snow, making them look like giant white peaks. Skiers zoomed down the slopes, enjoying the cold winter day.
What sport were people enjoying on the snowy mountains?
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pitcher
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ranch
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chuckle
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The violin is a stringed instrument that produces sound when a bow is drawn across its strings. It is used in many musical genres, from classical to folk music.
