- Matter is anything that has mass and takes up space.
- The three states of matter are solid, liquid, and gas.
- Solids have a definite shape and volume; their particles are tightly packed.
- Liquids have a definite volume but no definite shape; they take the shape of their container.
- Gases have no definite shape or volume; they expand to fill their container.
- Atoms in solids are arranged in a neat pattern and vibrate in place.
- Atoms in liquids are close together but can move past each other.
- Atoms in gases are far apart and move freely.
- Examples of solids: rock, book, chair.
- Examples of liquids: water, milk, juice.
- Examples of gases: air, helium, steam.
- To review, cut out the shapes and match them with the correct state of matter description.
Parent Tip: Review the logic above to help your child master the concept of states of matter 2nd grade worksheet.
