50 States Of Matter Worksheet Chemistry - Free Printable

Let's go through each question on the "States of Matter Test" and solve it step by step, explaining the reasoning behind each answer.

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1. Matter is anything that takes up _________.

A. time
B. space
C. light

✔ Correct Answer: B. space

Explanation:
Matter is defined as anything that has mass and takes up space (volume). Time and light are not physical substances, so they don't qualify as matter.

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2. If an object has its own shape and feels hard it is a _________.

✔ Answer: Solid

Explanation:
Solids have a definite shape and volume. They are rigid and maintain their form unless acted upon by an external force.

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3. Something that takes the shape of its container and can pour, flow, and spill is _________.

✔ Answer: Liquid

Explanation:
Liquids do not have a fixed shape—they take the shape of their container—but they have a definite volume. They can flow and be poured.

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4. Something that fills up all of a container and that we can't see is a _________.

✔ Answer: Gas

Explanation:
Gases expand to fill their entire container and have no fixed shape or volume. Many gases (like air) are invisible.

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5. Draw the molecules for each state of matter:

We need to draw how molecules are arranged in solid, liquid, and gas.

Here’s what should be drawn:

#### Solid:
- Molecules are tightly packed in a regular pattern.
- Very little movement.
- Draw small circles (molecules) close together in a grid-like structure.

#### Liquid:
- Molecules are close together but not in a fixed pattern.
- Can move past each other.
- Draw circles clustered together, slightly more spaced than solid, with some randomness.

#### Gas:
- Molecules are far apart and move freely.
- No fixed arrangement.
- Draw circles spread out across the oval with lots of space between them.

> *(Note: Since this is text-based, I can’t draw, but you would sketch accordingly.)*

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6. A bowl of water left in the sun all day may dry up because

A) the sun cools it into ice
B) cold weather turns it into a solid
C) the heat evaporates the water into a gas

✔ Correct Answer: C) the heat evaporates the water into a gas

Explanation:
When water is heated by the sun, it undergoes evaporation, changing from liquid to gas (water vapor), which rises into the air. This causes the bowl to dry up.

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7. Circle whether the object is heated or cooled to make the 2nd object.

| Change | Heated / Cooled |
|--------|------------------|
| Flowing Lava → Rock | Cooled |
| Ice → Water | Heated |
| Clouds → Rain | Cooled |
| Water → Steam | Heated |

#### Explanation:

- Flowing Lava → Rock: Lava is molten rock; when it cools, it solidifies into rock.
- Ice → Water: Ice melts into water when heated.
- Clouds → Rain: Water vapor in clouds cools and condenses into liquid droplets (rain).
- Water → Steam: Water turns into steam (gas) when heated (boiling).

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✔ Final Answers Summary:

1. B. space
2. Solid
3. Liquid
4. Gas
5. Draw:
- Solid: Tightly packed molecules in a pattern
- Liquid: Close but irregularly arranged molecules
- Gas: Widely spaced, scattered molecules
6. C) the heat evaporates the water into a gas
7.
- Lava → Rock: Cooled
- Ice → Water: Heated
- Clouds → Rain: Cooled
- Water → Steam: Heated

Let me know if you'd like a printable version or visual diagrams!