Science
Space Systems & Earth's History
Conceptual
9–11 yrs
Earth's rotation and day/night
地球自转与昼夜更替
Description
Use the idea of the Earth's rotation to explain day and night and the apparent movement of the sun across the sky
Mastery Evidence
- Explain that the Earth rotates (spins) on its axis once every 24 hours
- Describe how this rotation causes day (facing the sun) and night (facing away)
- Explain that the sun appears to move across the sky because we are rotating, not the sun
Assessment Prompt
Can your child explain that the sun doesn't actually move across the sky — it's the Earth spinning that makes it look like it does, and that's what causes day and night?
