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Science / Astronomy / Grade 2 / sa201

Explain Day and Night

Connect daylight with Earth's rotation.

5 questions0m 0s

Learn the skill

Earth turns on its axis. A place facing the Sun has daylight; as Earth turns that place away, it has night. Do not look directly at the Sun to investigate it.

Worked example

A mark on a model globe moves into and out of a lamp's light when the globe turns. The lamp need not circle the globe to produce this pattern.

1. What motion mainly produces day and night? Earth becoming larger Earth's rotation The Moon switching the Sun off

2. A place faces the Sun. Which condition usually fits? Daylight Night everywhere No light anywhere

3. A place turns away from the Sun. What happens? The Sun disappears forever Earth stops existing It moves into night

4. Is it daytime everywhere on Earth at once? Yes, every place has the same sunlight No, different places face toward or away from the Sun Yes, Earth is flat

5. Which method is suitable for learning this idea? Use a model rather than staring at the Sun Stare at the Sun Look at the Sun through binoculars

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