Mon Prof Augmenté
Day and Night
Age 9 · Astronomy
Earth turns like a spinning top about once every 24 hours. The half facing the Sun has daylight, and the half turned away has night.
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Age 9: open this week
Browse Age 9
In the picture
- The Sun: the star whose light reaches Earth
- The bright half of Earth: the side facing the Sun
- The dark half of Earth: the side turned away from the Sun
- The curved arrow: Earth’s once-a-day spin around its axis
Examples
- Morning sunlight through a window
- Stars in the sky at bedtime
Key takeaways
- Earth spins around an imaginary line through the North and South Poles.
- One full spin takes about 24 hours, giving day and night.
Quiz: Day and Night (Age 9)
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About how long does one full spin of Earth take?
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Which half of Earth has daylight?
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What imaginary line does Earth spin around?
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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