States of Matter Worksheet For STE | Download Free PDF | Gases ... - Free Printable

Let's solve this "States of Matter" worksheet step by step and explain each answer. The goal is to use the vocabulary words provided at the top to fill in the blanks correctly.

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Vocabulary List (Given):

- Contracts
- Expands
- Faster
- Kinetic molecular theory
- Move around quickly
- Slide past each other
- State of matter
- Vibrates
- Mass
- Matter
- Slower
- Volume

We'll use these to answer the questions.

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Question 1:

__________ is the amount of matter that makes up something.
✔ Answer: Mass
➡️ *Explanation:* "Mass" refers to the amount of matter in an object. It’s measured in grams or kilograms.

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Question 2:

__________ is the amount of space that a material takes up.
✔ Answer: Volume
➡️ *Explanation:* Volume measures how much space an object occupies, usually in liters or cubic centimeters.

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Question 3:

Anything that has mass and volume is called __________.
✔ Answer: Matter
➡️ *Explanation:* By definition, matter is anything that has mass and takes up space (volume).

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Question 4:

When you add energy to matter, the particles move __________ and the matter __________.
✔ Answers: Faster / Expands
➡️ *Explanation:* Adding energy increases particle motion (faster movement). As particles move more, they push apart, causing the matter to expand.

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Question 5:

Particles in a solid are packed so close together they can only __________.
✔ Answer: Vibrate
➡️ *Explanation:* In solids, particles are tightly held in place and can only vibrate in fixed positions.

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Question 6:

Particles in a liquid can __________.
✔ Answer: Slide past each other
➡️ *Explanation:* In liquids, particles are less tightly packed than in solids and can flow, sliding over one another.

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Question 7:

Particles in a gas can __________.
✔ Answer: Move around quickly
➡️ *Explanation:* Gas particles have high kinetic energy and move rapidly in all directions, filling their container.

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Question 8:

When you remove energy from particles they move __________ and the matter __________.
✔ Answers: Slower / Contracts
➡️ *Explanation:* Removing energy slows down particles. They move closer together, causing the substance to contract.

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Question 9:

The __________ explains how particles act when their spacing and movement change.
✔ Answer: Kinetic molecular theory
➡️ *Explanation:* This theory describes how particles behave in different states of matter based on their motion and energy.

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Question 10:

Match each Term on the left with the best Descriptor on the right. Each Descriptor may be used only once.

| Term | Descriptor |
|----------|------------|
| Mass | C. Amount of matter in an object |
| Solid | D. [Image of tightly packed particles] |
| Gas | E. [Image of widely spaced, moving particles] |
| Matter | A. Anything that has mass and volume |
| Liquid | B. Amount of space an object takes up? ✘ Wait — let's check carefully. |

Wait! Let's analyze the descriptors:

#### Given Descriptors:
- A. Anything that has mass and volume → Matter
- B. Amount of space an object takes up → Volume
- C. Amount of matter in an object → Mass
- D. Image showing tightly packed particles → Solid
- E. Image showing spread-out, fast-moving particles → Gas
- F. Blank → probably for Liquid, but we need to see what it shows.

But there are two images labeled D and E, and F is blank. Since only two images are shown, and they likely represent:
- D: Solid (particles close, ordered)
- E: Gas (particles far apart, random)

So what about Liquid?

There is no image for liquid, so maybe F is meant to be matched with liquid? But it's blank. Alternatively, perhaps the matching is only between terms and definitions.

Wait — the table shows:

| Term | Descriptor |
|----------|------------|
| Mass | C. Amount of matter in an object |
| Solid | D. [image] |
| Gas | E. [image] |
| Matter | A. Anything that has mass and volume |
| Liquid | ? |
| Volume | B. Amount of space an object takes up |

Ah! Now we see:

- Mass → C
- Solid → D (image of closely packed particles)
- Gas → E (image of scattered particles)
- Matter → A
- Liquid → ??? (but no image or text descriptor left)
- Volume → B

Wait — Liquid should go with F, but F is blank. That suggests F might be the image for liquid — possibly a diagram showing particles that are close but not rigidly arranged, able to slide.

But since only D and E are visible, and both are filled, perhaps F is intended for liquid, even if not shown.

Alternatively, maybe the liquid term matches B? No — B is “amount of space,” which is volume, not liquid.

Let’s re-express the correct matches:

| Term | Correct Match |
|----------|---------------|
| Mass | C. Amount of matter in an object ✔ |
| Solid | D. Image of tightly packed particles ✔ |
| Gas | E. Image of widely spaced, moving particles ✔ |
| Matter | A. Anything that has mass and volume ✔ |
| Liquid | F. (likely image of loosely packed, flowing particles) ✔ |
| Volume | B. Amount of space an object takes up ✔ |

So the final matching is:

- Mass → C
- Solid → D
- Gas → E
- Matter → A
- Liquid → F
- Volume → B

Even though F is blank in the image, logically it must be the descriptor for liquid.

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✔ Final Answers:

1. Mass
2. Volume
3. Matter
4. Faster, Expands
5. Vibrate
6. Slide past each other
7. Move around quickly
8. Slower, Contracts
9. Kinetic molecular theory
10. Matching:
- Mass → C
- Solid → D
- Gas → E
- Matter → A
- Liquid → F
- Volume → B

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📝 Summary Explanation:

This worksheet tests understanding of:
- Basic properties: mass and volume
- Definition of matter
- Behavior of particles in solids, liquids, gases
- How energy affects particle motion and state changes
- The kinetic molecular theory as the model explaining these behaviors

The key idea is that temperature (energy) affects how fast particles move, which determines the state of matter.

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