Comprehensive science worksheet helping students identify solids, liquids, and gases while learning about phase changes like melting and evaporation.

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

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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 (e.g., cutting, crushing). But generally, they maintain their shape.

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

3. Liquids keep their shape.
✘ False
Liquids do not keep their shape — they flow and adapt to the container’s shape.

4. Gases do not have a fixed shape.
✔ True
Gases expand to fill the entire container and do not have a fixed shape or volume.

5. Gases are often invisible.
✔ True
Most gases (like oxygen, nitrogen, carbon dioxide) are colorless and 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 → Steam rising = Gas
2. Olive oil on spoon → Flowing liquid = Liquid
3. Butter blocks → Solid form = Solid
4. Egg yolk and white → Runny, flowing = Liquid
5. Whipped cream (Nata) → Soft but holds shape slightly = Liquid (or semi-solid, but usually classified as liquid in basic science)
6. Tomato paste in jar → Thick, but flows slowly = Liquid
7. Cartoon cloud with sneeze → Representing vapor/air = Gas
8. Butter melting into liquid → Both solid and liquid present, but the process shows solid turning to liquid, so both states, but main focus is solid and liquid
9. Ice cubes → Frozen water = Solid
10. Cucumbers → Firm, rigid = Solid

So, labeling:
- Steaming cup → Gas
- Oil → Liquid
- Butter → Solid
- Egg → Liquid
- Nata → Liquid
- Tomato paste → Liquid
- Cloud/sneeze → Gas
- Butter melting → Solid and Liquid
- Ice cubes → Solid
- Cucumbers → Solid

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Part 3: Drag and drop the changes of matter

We have four processes: Evaporation, Melting, Condensation, Freezing

The diagram shows:
- Solid → Liquid: When heated → Melting
- Liquid → Gas: When heated → Evaporation
- Gas → Liquid: When cooled → Condensation
- Liquid → Solid: When cooled → Freezing

So fill in the blanks:

Top arrows (heat):
- Solid → Liquid → Melting
- Liquid → Gas → Evaporation

Bottom arrows (cool):
- Gas → Liquid → Condensation
- Liquid → Solid → Freezing

So the diagram should be labeled:
- Top left: Melting
- Top right: Evaporation
- Bottom left: Freezing
- Bottom right: Condensation

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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 water 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:

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

#### States of Matter (Images):
1. Gas
2. Liquid
3. Solid
4. Liquid
5. Liquid
6. Liquid
7. Gas
8. Solid & Liquid
9. Solid
10. Solid

#### Changes of Matter Diagram:
- Solid → Liquid (heat): Melting
- Liquid → Gas (heat): Evaporation
- Gas → Liquid (cool): Condensation
- Liquid → Solid (cool): Freezing

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

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Let me know if you'd like this formatted as a printable answer sheet!