Let's solve the worksheet titled
"What's the Matter?", which asks you to classify each item as a
solid, liquid, or gas. Here's the explanation and correct answers for each:
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1. Milk – Liquid
Milk flows and takes the shape of its container but has a fixed volume — this is characteristic of a
liquid.
2. Cookie – Solid
A cookie has a definite shape and volume. It doesn't flow like a liquid or expand like a gas — it’s a
solid.
3. Oxygen – Gas
Oxygen is a colorless, odorless gas that fills the space available to it — a
gas.
4. Fish – Solid
Fish are living organisms with a definite shape and volume (even though they can move). They are made of solid tissues — so classified as a
solid.
5. Pencil – Solid
A pencil is rigid and maintains its shape — clearly a
solid.
6. Maple syrup – Liquid
Maple syrup pours and flows slowly, taking the shape of its container — it’s a
liquid.
7. Shampoo – Liquid
Shampoo flows out of the bottle and conforms to the container — a
liquid.
8. Carbon dioxide – Gas
Carbon dioxide is a gas at room temperature. It's invisible and expands to fill its container — a
gas.
9. Ice cube – Solid
Ice is frozen water; it has a fixed shape and volume — a
solid.
10. Paint – Liquid
Paint flows and spreads when poured — it’s a
liquid (though some paints may be thick, they still behave as liquids).
11. Oil – Liquid
Oil pours and flows, taking the shape of its container — a
liquid.
12. Salt – Solid
Salt is made of tiny crystals with a fixed shape and volume — a
solid.
13. Water vapor – Gas
Water vapor is water in its gaseous state — invisible and expanding to fill space — a
gas.
14. Gasoline – Liquid
Gasoline is a flammable liquid that flows and takes the shape of its container — a
liquid.
15. Helium – Gas
Helium is a noble gas used in balloons. It expands to fill its container — a
gas.
16. Sand – Solid
Sand is made of tiny solid particles (like quartz) that maintain their individual shapes — even though it can flow, each grain is a
solid.
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✔ Final Answers:
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
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This worksheet helps reinforce understanding of the
three states of matter: solids (definite shape and volume), liquids (definite volume, no definite shape), and gases (no definite shape or volume). The images (balloon, log, milk carton) are visual cues: balloon = gas, log = solid, milk = liquid.
Parent Tip: Review the logic above to help your child master the concept of science worksheet for 3rd grade.
