Matter Worksheets - Solid, Liquid, and Gas - Free Printable

Problem Analysis:

The worksheet is about understanding the processes involved in changing water from one state to another. The tasks involve filling in blanks with vocabulary words and temperatures, as well as explaining the difference between two processes.

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Part 1: Filling in the blanks with vocabulary words

#### Vocabulary Words:
- Melting: When ice turns into liquid water.
- Freezing: When liquid water turns into ice.
- Boiling: When liquid water is heated to a high temperature and quickly turns into water vapor.
- Condensing: When water vapor turns into liquid water.
- Evaporating: When liquid water slowly dries up and turns into water vapor.

#### Questions:
1. When liquid water turns into ice.
- This is the process of freezing.
- Answer: Freezing

2. When ice turns into liquid water.
- This is the process of melting.
- Answer: Melting

3. When water vapor turns into liquid water.
- This is the process of condensing.
- Answer: Condensing

4. When liquid water slowly dries up and turns into water vapor.
- This is the process of evaporating.
- Answer: Evaporating

5. When liquid water is heated to a high temperature and quickly turns into water vapor.
- This is the process of boiling.
- Answer: Boiling

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Part 2: Filling in the blanks with temperatures

#### Temperatures:
- 0°F or 0°C: The freezing point of water (where liquid water turns into ice).
- 32°F or 0°C: The freezing point of water (conversion between Fahrenheit and Celsius).
- 100°C or 212°F: The boiling point of water (where liquid water turns into water vapor).

#### Questions:
6. Liquid water quickly turns into water vapor at _______ Fahrenheit or _______ Celsius.
- This describes the boiling point of water.
- Answer: 212°F or 100°C

7. Liquid water turns into a solid at _______ Fahrenheit or _______ Celsius.
- This describes the freezing point of water.
- Answer: 32°F or 0°C

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Part 3: Answer the question below

8. Explain how melting is different from freezing.
- Melting: This is the process where ice (solid water) absorbs heat and changes into liquid water. It involves a change from a solid state to a liquid state.
- Freezing: This is the process where liquid water loses heat and changes into ice (solid water). It involves a change from a liquid state to a solid state.
- Key Difference: Melting and freezing are opposite processes. Melting occurs when heat is added, while freezing occurs when heat is removed.

Answer: Melting is the process where ice turns into liquid water by absorbing heat, while freezing is the process where liquid water turns into ice by losing heat. They are opposite processes.

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Final Answers:

1. Freezing
2. Melting
3. Condensing
4. Evaporating
5. Boiling
6. 212°F or 100°C
7. 32°F or 0°C
8. Melting is the process where ice turns into liquid water by absorbing heat, while freezing is the process where liquid water turns into ice by losing heat. They are opposite processes.

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Boxed Final Answer:

\[
\boxed{
\text{1. Freezing, 2. Melting, 3. Condensing, 4. Evaporating, 5. Boiling, 6. 212°F or 100°C, 7. 32°F or 0°C, 8. Melting is the process where ice turns into liquid water by absorbing heat, while freezing is the process where liquid water turns into ice by losing heat. They are opposite processes.}
}
\]