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Crocodile on a Sunny Bank
Age 10 · Biology
A crocodile does not make enough body heat on its own, so it uses the sun and water to stay warm or cool. It lies in the sun, opens its mouth, and slips into water when it needs a different temperature.
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Age 10: open this week
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In the picture
- Badge 1: the crocodile’s back on the sunlit bank, where it soaks up warmth.
- Badge 2: the crocodile’s wide-open mouth, which lets heat leave or enter.
- Badge 3: the water around the crocodile’s tail, where it cools down.
Examples
- A lizard resting on a warm rock.
- A cat moving from a sunny window to a cool floor.
Key takeaways
- Crocodiles get most of their body heat from outside their bodies.
- Basking, gaping, and entering water help a crocodile keep a usable body temperature.
Quiz: Crocodile on a Sunny Bank (Age 10)
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Why does a crocodile often lie in the sun?
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What does opening its mouth help a crocodile do?
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Why might a crocodile slip into water?
The answers, each with its explanation, are in the app. This lesson has left the free week, so its quiz is part of the subscription.
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