States and Changes of Matter worksheet - Free Printable

Task: Solve the worksheet on "States of Matter"

#### Part 1: True or False
We need to determine whether each statement about the states of matter is true or false.

1. Solids can change their shape.
- False: Solids have a fixed shape and volume. They do not change their shape unless they are deformed or broken.

2. Liquids take the shape of the container.
- True: Liquids have a fixed volume but no fixed shape. They take the shape of their container.

3. Liquids keep their shape.
- False: Liquids do not keep a fixed shape; they adapt to the shape of their container.

4. Gases do not have a fixed shape.
- True: Gases have neither a fixed shape nor a fixed volume. They expand to fill the volume of their container.

5. Gases are often invisible.
- True: Many gases, such as air, are invisible to the human eye.

Answers:
1. False
2. True
3. False
4. True
5. True

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#### Part 2: Identify the States of Matter
We need to classify each item as solid, liquid, or gas.

1. Steam rising from a cup (top left)
- Gas: Steam is water vapor, which is a gas.

2. Oil being poured (second from left)
- Liquid: Oil flows and takes the shape of its container.

3. Butter (middle row, second from left)
- Solid: Butter has a fixed shape and volume.

4. Egg yolk (middle row, third from left)
- Liquid: Egg yolk flows and takes the shape of its container.

5. Yogurt (middle row, far right)
- Liquid: Yogurt is a semi-liquid substance that flows.

6. Ketchup bottle (bottom row, far left)
- Liquid: Ketchup flows when squeezed out of the bottle.

7. Cloud with wind (bottom row, second from left)
- Gas: Clouds are made of water vapor, which is a gas.

8. Melted butter in a bowl (bottom row, second from right)
- Liquid: Melted butter flows and takes the shape of its container.

9. Ice cubes (bottom row, middle)
- Solid: Ice cubes have a fixed shape and volume.

10. Zucchini slices (bottom row, far right)
- Solid: Zucchini slices have a fixed shape and volume.

Answers:
1. Gas
2. Liquid
3. Solid
4. Liquid
5. Liquid
6. Liquid
7. Gas
8. Liquid
9. Solid
10. Solid

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#### Part 3: Drag and Drop Changes of Matter
We need to match the names of the changes of matter with the corresponding arrows in the diagram.

The diagram shows:
- Heat applied to a solid → liquid → gas.
- Cool applied to a gas → liquid → solid.

The changes of matter are:
- Melting: Solid → Liquid
- Freezing: Liquid → Solid
- Evaporation: Liquid → Gas
- Condensation: Gas → Liquid

1. Solid → Liquid: Melting
2. Liquid → Gas: Evaporation
3. Gas → Liquid: Condensation
4. Liquid → Solid: Freezing

Answers:
- Top left arrow: Melting
- Top right arrow: Evaporation
- Bottom left arrow: Freezing
- Bottom right arrow: Condensation

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#### Part 4: Complete the Sentences
We need to fill in the blanks with the correct words: condenses, melts, evaporates.

1. When you heat butter it _________.
- Melts: Heating butter causes it to change from a solid to a liquid.

2. When you heat water it _________.
- Evaporates: Heating water causes it to change from a liquid to a gas (water vapor).

3. When you cool gas it _________.
- Condenses: Cooling gas causes it to change from a gas to a liquid.

Answers:
1. Melts
2. Evaporates
3. Condenses

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Final Answer:

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

2. Identify the States of Matter:
- 1. Gas
- 2. Liquid
- 3. Solid
- 4. Liquid
- 5. Liquid
- 6. Liquid
- 7. Gas
- 8. Liquid
- 9. Solid
- 10. Solid

3. Drag and Drop Changes of Matter:
- Top left: Melting
- Top right: Evaporation
- Bottom left: Freezing
- Bottom right: Condensation

4. Complete the Sentences:
- 1. Melts
- 2. Evaporates
- 3. Condenses

Final Boxed Answer:
\boxed{
\text{1. False, True, False, True, True} \\
\text{2. Gas, Liquid, Solid, Liquid, Liquid, Liquid, Gas, Liquid, Solid, Solid} \\
\text{3. Melting, Evaporation, Freezing, Condensation} \\
\text{4. Melts, Evaporates, Condenses}
}