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Lesson 2 of 84 · Days and Seasons
ExperimentWhy We Have Day and Night
What You'll Learn
Day and night happen because the Earth spins like a top. One full spin takes 24 hours!
Key Words
- sun
- moon
- star
Materials Needed
- markers
- string
- tape
Safety First
- Use materials only as directed in the experiment.
- Keep small objects away from young children.
- Work in a well-ventilated area when using vinegar or other strong-smelling substances.
Steps
Step 1 — Read
Look at the new words. Can you say each one?
Step 2 — Do
Go outside at night with a grown-up and count the stars you see. Draw the brightest ones.
Step 3 — Observe
Use your senses to describe what you notice.
Step 4 — Record
Write 1-2 sentences about what happened.
Check Your Understanding
Question 1
1 of 3What causes day and night?