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States of Matter Exploration
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States of Matter Exploration
Answer every question. Choose one option for each multiple-choice question. Use your science knowledge to explain your ideas.
Particle models
Choose the best answer
1.Which state keeps its own shape and volume when moved to a different container?
- Solid
- Liquid
- Gas
- All three states
2.A substance flows, takes the shape of its container, and keeps a fixed volume. Which state is it in?
- Solid
- Liquid
- Gas
- Plasma
3.A solid changes directly into a gas without first becoming a liquid. What is this change called?
- Melting
- Condensation
- Sublimation
- Freezing
4.Water vapour turns directly into ice crystals on a very cold surface. Which phase change has happened?
- Evaporation
- Deposition
- Melting
- Boiling
Connect and explain
5.Match each phase change to what happens to the substance.
- Melting
- Freezing
- Evaporation
- Condensation
- Sublimation
- Deposition
- Liquid changes into solid
- Liquid changes into gas at its surface
- Gas changes into liquid
- Solid changes into liquid
- Solid changes directly into gas
- Gas changes directly into solid
6.From your science knowledge, describe how the arrangement and movement of particles differ in a solid, a liquid, and a gas. Write one clear point about each state.
7.Explain one difference between evaporation and boiling. Include where the change happens and when it can occur.
8.A sample of pure water ice starts at −8°C and is warmed steadily to 6°C at normal air pressure. Name the phase change that occurs and give the approximate temperature at which it begins.
9.At normal air pressure, dry ice (solid carbon dioxide) left in a room at 21°C turns into gas without forming a liquid. Name the change and explain why carbon dioxide does not become liquid under these conditions.
Make a particle model
10.Draw three labelled particle models: solid, liquid, and gas. Use dots for particles and arrows to show their movement. Make the spacing and arrangement in each model scientifically accurate.
3 printable pages
Page 1
Page 2
Page 3
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