States-of-Matter-Worksheet.pdf | Study notes Chemistry | Docsity - Free Printable

Let's solve this Science 8 – States of Matter Worksheet step by step using the vocabulary provided and scientific concepts.

---

Vocabulary Box:

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

---

Question 1:

__________ is the amount of matter that makes up something.

✔ Answer: Mass
> *Explanation:* Mass refers to the amount of matter in an object, measured in grams or kilograms.

---

Question 2:

__________ is the amount of space that a material takes up.

✔ Answer: Volume
> *Explanation:* Volume is how much space a substance occupies (e.g., liters, cubic centimeters).

---

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).

---

Question 4:

When you add energy to matter, the particles move __________ and the matter __________.

✔ Answer: Faster, Expands
> *Explanation:* Adding energy increases particle motion (faster movement), causing them to spread out → expansion.

---

Question 5:

Particles in a solid are packed so close together they can only __________.

✔ Answer: Vibrate
> *Explanation:* In solids, particles are tightly packed and vibrate in place; they don’t flow or move freely.

---

Question 6:

Particles in a liquid can __________.

✔ Answer: Slide past each other
> *Explanation:* Liquids have particles that are close but not fixed — they can slide over one another, allowing flow.

---

Question 7:

Particles in a gas can __________.

✔ Answer: Move around quickly
> *Explanation:* Gas particles are far apart and move rapidly in all directions.

---

Question 8:

When you remove energy from particles they move __________ and the matter __________.

✔ Answer: Slower, Contracts
> *Explanation:* Removing energy slows down particles, reducing their movement and causing the substance to shrink (contract).

---

Question 9:

The __________ explains how particles act when their spacing and movement change.

✔ Answer: Kinetic molecular theory
> *Explanation:* This theory describes the behavior of particles in solids, liquids, and gases based on their motion, energy, and interactions.

---

Question 10: Match each Term with the best Descriptor

| Term | Descriptor |
|----------|-----------|
| Mass | C. Amount of matter in an object |
| Solid | D. [Image showing tightly packed particles] |
| Gas | E. [Image showing widely spaced particles] |
| Matter | A. Anything that has mass and volume |
| Liquid | F. [Image showing particles that are close but able to move] |
| Volume | B. Amount of space an object takes up |

#### Let's analyze the images:
- D: Tightly packed particles → Solid
- E: Particles far apart, moving freely → Gas
- F: Particles close but not rigid → Liquid

So:

| Term | Descriptor |
|----------|------------|
| Mass | C |
| Solid | D |
| Gas | E |
| Matter | A |
| Liquid | F |
| Volume | B |

✔ Final Matching:
- Mass → C
- Solid → D
- Gas → E
- Matter → A
- Liquid → F
- Volume → B

---

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

---

Let me know if you'd like this formatted for printing or as a completed worksheet!