Solids, Liquids and Gases Game for Kids: Solids, Liquids & Gases
Solids, Liquids & Gases is a free science game that helps children sort everyday materials into states of matter and understand how materials change.
Solids, Liquids & Gases
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- Ages
- 6–11
- School years
- Grade 1–Grade 6
- Skills
- Sorting everyday materials into solids, liquids and gases, Describing the properties of each state of matter, Reading simple particle pictures
- Time
- 2–5 minutes a round
- Cost
- Free, no sign-up
- Updated
How to play Solids, Liquids & Gases
- Choose a level: Solid, liquid or gas?, Properties, Changes of state, or Reversible changes.
- Read the question, look at the picture if there is one, and tap your answer.
- Read the fun fact after each answer to learn the science behind it.
- Answer 10 questions and aim for three stars!
What your child learns
- Sorting everyday materials into solids, liquids and gases
- Describing the properties of each state of matter
- Reading simple particle pictures
- Melting, freezing, evaporation and condensation
- The water cycle: evaporation, condensation, precipitation and collection
- Telling reversible changes from irreversible changes
About Solids, Liquids & Gases
Everything around us is a solid, a liquid or a gas. Children start by sorting familiar materials, from ice cubes and honey to the air in a football, then learn what makes each state different: solids keep their shape, liquids flow and take the shape of their container, and gases spread out to fill any space. Tricky examples such as sand, sugar and flour come with a clear explanation of why a powder is still a solid.
Children in Grades 1–2 can start with Solid, liquid or gas? Properties suits Grade 3, with simple particle pictures. Changes of state covers melting, freezing, evaporation, condensation and the water cycle for Grades 4–5, and Reversible changes, for Grades 5–6, asks whether a change can be undone or makes a new material, like baking a cake or a nail rusting. Every answer comes with a fun fact.
Which level should my child play?
| School year | Suggested level |
|---|---|
| Grade 1 | Solid, liquid or gas? |
| Grade 2 | Solid, liquid or gas? |
| Grade 3 | Properties |
| Grade 4 | Changes of state |
| Grade 5 | Changes of state, Reversible changes |
| Grade 6 | Reversible changes |
Move up a level after getting three stars two or three times in a row.
🏆 Leaderboard
Full leaderboard →Play a round to get on the board! Create a free account to save your scores.
Frequently asked questions
Is sand a solid or a liquid?
Sand is a solid. Each grain is a tiny piece of rock that keeps its own shape. A pile of sand can be poured only because the grains are so small, and the same is true for sugar, salt and flour.
What are the four stages of the water cycle?
Evaporation (the sun warms water and it rises into the air as an invisible gas), condensation (the gas cools and forms clouds of tiny droplets), precipitation (rain, hail, sleet or snow falls) and collection (water gathers in rivers, lakes and the sea).
What is the difference between a reversible and an irreversible change?
A reversible change can be undone, like melting ice or dissolving salt in water. An irreversible change makes new materials and cannot be undone, like burning wood, baking a cake or iron rusting.
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Help your child shine in school
Practice at home is a great start. Success Tutoring offers personalised tutoring to build skills and confidence.