Science
Volcanoes & Earthquakes
Conceptual
7–9 yrs
Earth's Layers
地球的圈层结构
Description
Know that Earth has layers — a thin outer crust, a thick hot mantle, and a core at the centre — and that the inside of the Earth is extremely hot
Mastery Evidence
- Name Earth's three main layers: crust, mantle, and core
- Explain that the crust is thin compared to the other layers
- State that Earth's interior is extremely hot — hot enough to melt rock
Assessment Prompt
If your child cracks open a hard-boiled egg, can they compare it to Earth and name the three layers — crust on the outside, mantle in the middle, and core at the centre?
