True or False worksheet on states of matter for elementary science education.
A printable worksheet titled "True or False?" with eight statements about solids, liquids, and gases for students to evaluate as true or false, featuring cartoon illustrations of children at the top.
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Show Answer Key & Explanations
Step-by-step solution for: True or False? Worksheets
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Show Answer Key & Explanations
Step-by-step solution for: True or False? Worksheets
Let's go through each statement on the worksheet and determine whether it is True or False, with explanations for each.
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Answer: False
Explanation: While some advanced science contexts mention plasma, Bose-Einstein condensates, etc., in basic science (especially at the elementary level), the four common states of matter are solid, liquid, gas, and plasma. However, many introductory curricula only teach three: solid, liquid, and gas. So depending on context, this could be debated. But since the worksheet mentions "solids, liquids, and gases," it likely expects three as standard. Thus, saying there are *only* four may be misleading if not specifying plasma. But actually, there are more than four if you include exotic states. So the most accurate answer here is False, because the commonly taught states are three, and the statement implies exactly four without clarification.
> ✔ Better answer: False — The primary states taught are three (solid, liquid, gas), though plasma is a fourth. But since the question says “are 4,” and doesn't clarify, it’s often considered false in basic education contexts.
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Answer: True
Explanation: Solids and liquids are visible to the naked eye. Gases are typically invisible (e.g., air). You can see water (liquid) and ice (solid), but not oxygen or nitrogen gas unless it's condensed or has particles in it (like steam). So yes, liquids and solids are the visible states under normal conditions.
✔ True
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Answer: True
Explanation: This is a fundamental definition of matter. Anything that has mass and volume (takes up space) is matter. This includes solids, liquids, and gases.
✔ True
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Answer: False
Explanation: Both living and non-living things are made of matter. A plant, animal, person — all are made of atoms and have mass and volume. So, living things are also matter.
✘ False
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Answer: True
Explanation: Water changes state with temperature:
- Solid: ice
- Liquid: water
- Gas: steam (water vapor)
This is a classic example of the three states of matter.
✔ True
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Answer: False
Explanation: Solids keep their shape regardless of the container. For example, a block of wood stays a block even if placed in a box. Liquids and gases change shape to fit containers, but solids do not.
✘ False
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Answer: True
Explanation: Yes! Liquids take the shape of the container they're in, while keeping a fixed volume. For example, water in a cup vs. a bottle — same amount, different shape.
✔ True
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Answer: True
Explanation: Most gases like oxygen, nitrogen, carbon dioxide are invisible. We can only see them when they’re mixed with particles (like fog or smoke) or when they condense. So, generally, we cannot see most gases.
✔ True
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| Statement | Answer |
|---------|--------|
| 1. There are 4 states of matter. | False |
| 2. The two states of matter you can see are liquids and solids. | True |
| 3. All matter has mass and takes up space. | True |
| 4. Only non-living things are matter. | False |
| 5. Water can be a solid, a liquid, and a gas. | True |
| 6. Solids can change their shape depending on the container. | False |
| 7. Liquids can change their shape depending on the container. | True |
| 8. You can’t see most gases. | True |
Let me know if you'd like this formatted as a printable answer key!
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1. There are 4 states of matter.
Answer: False
Explanation: While some advanced science contexts mention plasma, Bose-Einstein condensates, etc., in basic science (especially at the elementary level), the four common states of matter are solid, liquid, gas, and plasma. However, many introductory curricula only teach three: solid, liquid, and gas. So depending on context, this could be debated. But since the worksheet mentions "solids, liquids, and gases," it likely expects three as standard. Thus, saying there are *only* four may be misleading if not specifying plasma. But actually, there are more than four if you include exotic states. So the most accurate answer here is False, because the commonly taught states are three, and the statement implies exactly four without clarification.
> ✔ Better answer: False — The primary states taught are three (solid, liquid, gas), though plasma is a fourth. But since the question says “are 4,” and doesn't clarify, it’s often considered false in basic education contexts.
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2. The two states of matter you can see are liquids and solids.
Answer: True
Explanation: Solids and liquids are visible to the naked eye. Gases are typically invisible (e.g., air). You can see water (liquid) and ice (solid), but not oxygen or nitrogen gas unless it's condensed or has particles in it (like steam). So yes, liquids and solids are the visible states under normal conditions.
✔ True
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3. All matter has mass and takes up space.
Answer: True
Explanation: This is a fundamental definition of matter. Anything that has mass and volume (takes up space) is matter. This includes solids, liquids, and gases.
✔ True
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4. Only non-living things are matter.
Answer: False
Explanation: Both living and non-living things are made of matter. A plant, animal, person — all are made of atoms and have mass and volume. So, living things are also matter.
✘ False
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5. Water can be a solid, a liquid, and a gas.
Answer: True
Explanation: Water changes state with temperature:
- Solid: ice
- Liquid: water
- Gas: steam (water vapor)
This is a classic example of the three states of matter.
✔ True
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6. Solids can change their shape depending on the container that they are in.
Answer: False
Explanation: Solids keep their shape regardless of the container. For example, a block of wood stays a block even if placed in a box. Liquids and gases change shape to fit containers, but solids do not.
✘ False
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7. Liquids can change their shape depending on the container that they are in.
Answer: True
Explanation: Yes! Liquids take the shape of the container they're in, while keeping a fixed volume. For example, water in a cup vs. a bottle — same amount, different shape.
✔ True
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8. You can’t see most gases.
Answer: True
Explanation: Most gases like oxygen, nitrogen, carbon dioxide are invisible. We can only see them when they’re mixed with particles (like fog or smoke) or when they condense. So, generally, we cannot see most gases.
✔ True
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✔ Final Answers:
| Statement | Answer |
|---------|--------|
| 1. There are 4 states of matter. | False |
| 2. The two states of matter you can see are liquids and solids. | True |
| 3. All matter has mass and takes up space. | True |
| 4. Only non-living things are matter. | False |
| 5. Water can be a solid, a liquid, and a gas. | True |
| 6. Solids can change their shape depending on the container. | False |
| 7. Liquids can change their shape depending on the container. | True |
| 8. You can’t see most gases. | True |
Let me know if you'd like this formatted as a printable answer key!
Parent Tip: Review the logic above to help your child master the concept of state of matter worksheet for 2nd grade.
