Solids Around Us

Looking Around 2 — Healthy Food / Houses. Solids around the home — chalk, bricks, utensils — appear in Healthy Food and Houses chapters.

• Solids have a fixed shape.
• Solids can be hard or soft but keep their shape.
• Examples from home and school.

Verbal: A solid keeps its own shape — you can hold it. It can be hard (brick) or soft (cotton).

Symbolic: Solid: fixed shape + fixed volume (intro). Examples: chalk, jaggery block, steel plate.

Level 1 — Properties of solids

Fixed shape, you can hold them, usually don't flow.

Level 1 — Hard vs soft solids

Level 1 — Not all solids are heavy

Cotton ball is solid but light.

Level 2 — Change shape?

Some solids bend (clay) or break (biscuit) — still solids.

Level 2 — India

Chalk in class, jaggery (gur) block, steel plate at home.

Is a rubber ball a solid? Why?

Step 1 — Ball has fixed shape when not squeezed hard.
Step 2 — You can hold it.
Step 3 — Fits definition of **solid**.
Answer: Yes — it keeps its shape.

• Name three solids in your pencil box.
• Does water take shape of bottle? (No — that's liquid)
• Is sand a solid?

Stretch: Is ice a solid or liquid? Is sand one solid or many tiny solids?

Revision tip: Walk one room and list ten solids — say whether each is hard or soft.

Open the Practice tab for graded questions on Solids Around Us.