Materials

Question 1

Material

Answer 1

The name given to any substance.

Examples: wood, plastic, metal.

Question 2

Property

Answer 2

How a material behaves.

Example: its melting point, density, hardness.

Question 3

Melting point.

Answer 3

The temperature where a solid turns into a liquid.

Example: ice (solid) turns into liquid (water) at 100oC.

Question 4

Strength (how strong)

Answer 4

A strong material is difficult to break or change shape.

Example: metal, some plastics.

Question 5

Softness (how soft)

Answer 5

A soft material breaks or changes shape easily.

Example: fabric.

Question 6

Stiffness (how stiff)

Answer 6

A stiff material does not bend easily.

Example: wood, metal.

Question 7

Flexible (bendy)

Answer 7

A flexible material bends easily.

Example: plastic.

Question 8

Hardness (how hard)

Answer 8

A hard material is difficult to cut.

Example: diamond.

Question 9

High density

Answer 9

A material with a high density (dense) is heavy for its size.
Example: metal.

Question 10

Low density

Answer 10

A material with low density is not heavy for its size.

Example: plastic.