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

Let me work through this step by step to identify whether each item is a solid, liquid, or gas.

Part 1: Classifying each item as solid, liquid, or gas

1. milk - This flows and takes the shape of its container but has a definite volume → liquid

2. cookie - Has a definite shape and volume, doesn't flow → solid

3. oxygen - A gas that fills any container it's in, no definite shape or volume → gas

4. fish - Has a definite shape and structure → solid

5. pencil - Has a definite shape and volume → solid

6. maple syrup - Flows and takes the shape of its container but has a definite volume → liquid

7. shampoo - Flows and takes the shape of its container but has a definite volume → liquid

8. carbon dioxide - A gas with no definite shape or volume → gas

9. ice cube - Has a definite shape and volume (frozen water) → solid

10. paint - Flows and takes the shape of its container but has a definite volume → liquid

11. oil - Flows and takes the shape of its container but has a definite volume → liquid

12. salt - Has a definite shape and volume (crystals) → solid

13. water vapor - Water in gaseous form, no definite shape or volume → gas

14. gasoline - Flows and takes the shape of its container but has a definite volume → liquid

15. helium - A gas with no definite shape or volume → gas

16. sand - While individual grains are tiny solids, sand as a whole can be poured and takes the shape of its container. However, sand particles ARE connected to each other (they touch), so technically sand is made of solids. In most elementary science contexts, sand is classified as a solid because it's made of small rock particles.

Part 2: Completing sentences

Looking at the definitions:
- "has a definite shape. It does not take the shape of its container. It also has a definite volume because it can be measured." → This describes a SOLID

- "does not have a definite shape. It takes the shape of its container. It does have a definite volume because it can be measured." → This describes a LIQUID

- "does not have a definite shape. It sometimes takes the shape of its container and sometimes flies freely around you. These particles are not connected to each other and take up whatever space is available." → This describes a GAS

Final Answer:

Part 1:
1. milk - liquid
2. cookie - solid
3. oxygen - gas
4. fish - solid
5. pencil - solid
6. maple syrup - liquid
7. shampoo - liquid
8. carbon dioxide - gas
9. ice cube - solid
10. paint - liquid
11. oil - liquid
12. salt - solid
13. water vapor - gas
14. gasoline - liquid
15. helium - gas
16. sand - solid

Part 2:
- A solid has a definite shape. It does not take the shape of its container. It also has a definite volume because it can be measured.
- A liquid does not have a definite shape. It takes the shape of its container. It does have a definite volume because it can be measured.
- A gas does not have a definite shape. It sometimes takes the shape of its container and sometimes flies freely around you. These particles are not connected to each other and take up whatever space is available.