Science
Matter & Materials
Conceptual
10–11 yrs
Matter Is Made of Particles
物质由粒子构成
Description
Develop a model to describe that matter is made of particles too small to be seen, and that this explains properties of solids, liquids, and gases
Mastery Evidence
- Describe matter as made of particles too small to see with the naked eye
- Use a particle model to explain differences: particles tightly packed (solid), loosely arranged (liquid), spread far apart (gas)
- Use the particle model to explain a state change (e.g. heating makes particles move faster and spread apart)
Assessment Prompt
Can your child explain that everything is made of tiny particles we can't see, and that how tightly packed they are determines whether something is a solid, liquid, or gas?
