States and Changes of Matter worksheet - Free Printable

Let's go through the worksheet step by step and solve each part with explanations.

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Part 1: True or False

1. Solids can change their shape.
✘ False
→ Solids have a fixed shape and volume. They do not easily change shape unless force is applied (like cutting or crushing). But in general, they maintain their shape under normal conditions.

2. Liquids take the shape of the container.
✔ True
→ Liquids flow and take the shape of the container they are in, but they maintain a fixed volume.

3. Liquids keep their shape.
✘ False
→ Liquids do not keep their shape; they flow and adapt to the shape of the container.

4. Gases do not have a fixed shape.
✔ True
→ Gases expand to fill their container and have no fixed shape or volume.

5. Gases are often invisible.
✔ True
→ Most gases (like oxygen, nitrogen, carbon dioxide) are invisible to the naked eye.

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Part 2: Identify the state of matter (Solid, Liquid, Gas)

Let’s analyze each image:

1. Steaming cup of coffee → Steam rising = Gas (water vapor)
2. Oil being poured → Liquid
3. Butter blocks → Solid
4. Egg (yolk and white) → Liquid (raw egg)
5. Whipped cream (Nata) → Liquid (though thick, it flows slightly – considered liquid)
6. Tomato paste in jar → Liquid (thick, but still flows)
7. Cartoon cloud blowing air → Gas (air/wind)
8. Butter melting into a bowl → Liquid (but solid butter also present — focus on the melted part)
9. Ice cubes → Solid
10. Cucumbers (whole and sliced) → Solid

So the answers:
- Steaming cup → Gas
- Oil → Liquid
- Butter → Solid
- Egg → Liquid
- Whipped cream → Liquid
- Tomato paste → Liquid
- Cloud → Gas
- Melting butter → Liquid
- Ice cubes → Solid
- Cucumbers → Solid

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Part 3: Drag and drop changes of matter

We have:
- Evaporation
- Melting
- Condensation
- Freezing

The diagram shows:
- Solid → Liquid (with heat) → Melting
- Liquid → Gas (with heat) → Evaporation
- Gas → Liquid (with cooling) → Condensation
- Liquid → Solid (with cooling) → Freezing

So fill in the blanks:

- Top left arrow (Solid → Liquid): Melting
- Top right arrow (Liquid → Gas): Evaporation
- Bottom right arrow (Gas → Liquid): Condensation
- Bottom left arrow (Liquid → Solid): Freezing

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Part 4: Complete the sentences

Words to choose from: condenses, melts, evaporates

1. When you heat butter it melts.
→ Butter changes from solid to liquid when heated.

2. When you heat water it evaporates.
→ Water turns into vapor (gas) when heated.

3. When you cool gas it condenses.
→ Gas turns into liquid when cooled (e.g., steam becoming water droplets).

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✔ Final Answers Summary:

#### True or False:
1. False
2. True
3. False
4. True
5. True

#### States of Matter:
- Steaming cup → Gas
- Oil → Liquid
- Butter → Solid
- Egg → Liquid
- Whipped cream → Liquid
- Tomato paste → Liquid
- Cloud → Gas
- Melting butter → Liquid
- Ice cubes → Solid
- Cucumbers → Solid

#### Changes of Matter Diagram:
- Solid → Liquid: Melting
- Liquid → Gas: Evaporation
- Gas → Liquid: Condensation
- Liquid → Solid: Freezing

#### Complete the Sentences:
1. melts
2. evaporates
3. condenses

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