Matter's States Worksheet
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Matter's States Worksheet
Part A: Particle model
Matter is anything that has mass and takes up space. The particle model explains how matter behaves: particles in a solid vibrate in fixed positions; particles in a liquid stay close but move past one another; particles in a gas move freely and are widely spaced. Heating usually makes particles move faster; cooling usually makes them move more slowly.
- Metal spoon
- Cooking oil
- Air in the tyre
- Liquid
- Solid
- Gas
- Its particles are far apart and move freely.
- Its particles vibrate around fixed positions.
- Its particles flow past one another.
- Its particles have no mass.
Part B: Follow the water
At the station, water is heated in a kettle. The liquid water becomes water vapour. Later, the vapour touches a cold window and tiny liquid droplets form. Overnight, some of the water in an outdoor tray freezes.
- The glass changes into water.
- Water vapour cools and condenses into liquid droplets.
- The liquid water boils on the glass.
- The air particles stop existing.
Part C: Test the evidence
A student says, “Steam is the same as the white cloud above a kettle.” In science, steam is water in the gas state; the visible white cloud is made of tiny liquid droplets formed as water vapour cools.
3 printable pages
Page 1
Page 2
Page 3
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