Science: Solids, liquids and gases | Worksheet | PrimaryLeap.co.uk - Free Printable

Here’s the completed worksheet with all the missing spaces filled in correctly, along with a clear explanation for each answer:

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Completed Worksheet:

> Solids, Liquids and Gases

All materials are either solid, liquid or gas.
A brick, chocolate and glass are all solids.
Solids can be held. They have a definite shape.
The molecules that make up a solid are packed tightly together.

Water, milk and syrup are all liquids. Liquids can be poured and take the shape of the container they are in.

Steam, helium and carbon dioxide are all gases. Gases are mostly invisible. They will fill empty spaces. Steam is a gas, water is a liquid and ice is a solid.

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✔ Word Bank Used (from the liquid shape at bottom):

- liquid
- solids
- held
- shape
- tightly
- liquids
- poured
- container
- gases
- invisible
- spaces
- gas
- liquid
- solid

*(Note: “liquid” and “solid” appear twice in the word bank — this is intentional to allow reuse where needed.)*

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## 🔍 Explanation of Each Answer:

1. “All materials are either solid, ___ or gas.”
→ liquid — This is the standard classification of states of matter: solid, liquid, gas.

2. “A brick, chocolate and glass are all ___.”
→ solids — These materials hold their shape and are rigid — classic examples of solids.

3. “Solids can be ___.”
→ held — You can pick up and hold a solid object — it doesn’t flow or escape your hand.

4. “They have a definite ___.”
→ shape — Solids maintain their own shape regardless of container.

5. “The molecules that make up a solid are packed ___ together.”
→ tightly — In solids, molecules are closely packed and vibrate in place, giving them rigidity.

6. “Water, milk and syrup are all ___.”
→ liquids — These flow and take the shape of their container — defining features of liquids.

7. “Liquids can be ___ and take the shape of the ___ they are in.”
→ poured and container — Liquids pour easily and conform to the shape of whatever holds them.

8. “Steam, helium and carbon dioxide are all ___.”
→ gases — These substances expand to fill any space — typical gas behavior.

9. “Gases are mostly ___.”
→ invisible — Most gases (like air, steam, helium) cannot be seen with the naked eye.

10. “They will fill empty ___.”
→ spaces — Gases spread out to occupy all available volume — they don’t have fixed shape or volume.

11. “Steam is a ___, water is a ___ and ice is a ___.”
→ gas, liquid, solid — This shows the same substance (H₂O) in its three different states:
- Steam = gaseous state (water vapor)
- Water = liquid state
- Ice = solid state

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✔ Final Score Note: The score box at the top says “14” — which likely means the student got full marks (assuming 14 correct answers). All 14 blanks are filled correctly above.

This worksheet helps students understand the three states of matter and their properties — an essential concept in Year 5 Science (UK curriculum).

Let me know if you’d like a printable version or flashcards to reinforce this topic! 🐸📚