Science
Forces & Motion
Conceptual
7–8 yrs
Friction & Surfaces
摩擦力与物体表面
Description
Compare how things move on different surfaces, noticing that some surfaces create more friction than others
Mastery Evidence
- Observe and compare how the same object moves on at least three different surfaces
- Describe that rough surfaces slow objects down more than smooth surfaces
- Use the word 'friction' to explain why movement differs on different surfaces
Assessment Prompt
Can your child explain why a toy car rolls further on a smooth wooden floor than on carpet?
