Solids, liquids, and gases are key physical science concepts in Grades 3-4. This States of Matter worksheet set provides structured multiple choice practice focused on identifying the properties of each state of matter and recognizing real-world examples.
This printable set includes two 9-question multiple choice worksheets (18 total questions) and matching answer sheets with answers filled in for easy grading. These worksheets work well for both homeschool science practice and classroom use.
This free worksheet set helps students:
- identify solids, liquids, and gases
- understand shape and volume properties
- identify changes such as melting, freezing, and condensation
- recognize common real-world examples of each state of matter
- practice grade-level science vocabulary using multiple choice questions
Lesson: Understanding the States of Matter
What Is Matter?
Matter is anything that takes up space. Everything around you (your desk, the air you breathe, the water you drink) is made of matter.
Matter comes in three main states:
- Solid
- Liquid
- Gas
Each state has its own special properties.
Solids
A solid has:
- A definite shape (it keeps its shape)
- A definite volume (it takes up the same amount of space)
Examples: A rock, a pencil, a book, ice.
In a solid, the particles are packed tightly together, so they don’t move around much.
Liquids
A liquid has:
- No definite shape (it takes the shape of its container)
- A definite volume (it stays the same amount)
Examples: Water, milk, juice.
If you pour water into a tall glass, it becomes tall. If you pour it into a bowl, it spreads out. But it’s still the same amount of water.
Gases
A gas has:
- No definite shape
- No definite volume
Gases spread out to fill any space they’re in.
Examples: Air, helium in balloons, water vapor.
Changing States of Matter
Matter can change from one state to another when it gains or loses heat.
Melting
- Solid → Liquid
- Example: Ice melting into water
Freezing
- Liquid → Solid
- Example: Water freezing into ice
Evaporation
- Liquid → Gas
- Example: Puddles evaporating on a sunny day
These changes happen because heat affects how fast the particles move.
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