Phase Change in Matter Worksheet Interactive Worksheet - Edform - Free Printable

Let's solve this step by step.

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Part One: Fill in the Blanks

We are given a diagram showing three beakers representing different states of matter, with arrows indicating phase changes. The word bank includes:

- Solid
- Liquid
- Gas
- Add heat energy
- Remove heat energy
- Melting
- Freezing
- Evaporation
- Condensation

#### Step 1: Identify the states of matter
From left to right:
1. First beaker: contains an ice cube → Solid
2. Second beaker: contains liquid water → Liquid
3. Third beaker: contains vapor (invisible, but implied by context) → Gas

So we fill in the top blanks:
- Left: Solid
- Middle: Liquid
- Right: Gas

#### Step 2: Determine the phase changes (arrows)

Red arrows (→): Adding heat energy (going from solid → liquid → gas)

- Solid → Liquid: Melting (requires adding heat)
- Liquid → Gas: Evaporation (also requires adding heat)

So red arrows:
- From Solid to Liquid: label = Melting, and above it: Add heat energy
- From Liquid to Gas: label = Evaporation, and above it: Add heat energy

Blue arrows (←): Removing heat energy (going from gas → liquid → solid)

- Gas → Liquid: Condensation (removing heat)
- Liquid → Solid: Freezing (removing heat)

So blue arrows:
- From Gas to Liquid: label = Condensation, and below it: Remove heat energy
- From Liquid to Solid: label = Freezing, and below it: Remove heat energy

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✔ Final Answer for Part One:

Top row (states):
- Left: Solid
- Middle: Liquid
- Right: Gas

Red arrows (→):
- Solid → Liquid:
- Arrow label: Melting
- Above arrow: Add heat energy
- Liquid → Gas:
- Arrow label: Evaporation
- Above arrow: Add heat energy

Blue arrows (←):
- Gas → Liquid:
- Arrow label: Condensation
- Below arrow: Remove heat energy
- Liquid → Solid:
- Arrow label: Freezing
- Below arrow: Remove heat energy

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Part Two: Phase Change Read, Discuss, Respond

#### Passage Summary:
Ms. Staal makes lemonade with ice. She takes it outside on a hot day. After a few minutes, she notices her hand is wet from touching the outside of the glass. Water has formed on the outside.

#### What happened?
The cold glass cools the surrounding air. Water vapor (gas) in the air comes into contact with the cold surface of the glass and loses heat energy, changing from gas to liquid — forming tiny droplets of water on the outside.

This is condensation.

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✔ Answers for Part Two:

Name of Phase Change:
👉 Condensation

State of Matter 1:
👉 Gas (water vapor in the air)

State of Matter 2:
👉 Liquid (water droplets on the glass)

Description of what occurred:
When the cold glass was taken outside on a hot day, the warm air around it contained water vapor (invisible gas). As the vapor touched the cold surface of the glass, it lost heat energy and changed into liquid water droplets. This process is called condensation. The moisture collected on the outside of the glass made Ms. Staal’s hand wet when she picked it up.

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🔬 Particle Diagrams (to draw):

Before (Gas):
Draw small dots (particles) widely spaced, moving freely and rapidly in all directions.

```
• • •
\ / \ /
\ / \ /
• •
```

After (Liquid):
Draw particles closer together, still able to move but more tightly packed.

```
• • •
• • •
• • •
```

(Use circles or dots; show more order and proximity.)

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✔ Final Completed Answers:

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Part One: Filled Diagram

```
Solid Liquid Gas
↓ ↓ ↓
[Melting] [Evaporation]
↑ ↑ ↑
[Freezing] [Condensation]
```

With:
- Red arrows (→): Add heat energy above them
- Blue arrows (←): Remove heat energy below them

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Part Two:

- Name of Phase Change: Condensation
- State of Matter 1: Gas
- State of Matter 2: Liquid
- Description: Warm, moist air came into contact with the cold surface of the glass. The water vapor in the air lost heat energy and condensed into liquid water droplets on the outside of the glass. This is why her hand got wet.

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