Density

Cube A and cube B are the same size. Which cube is made of heavier stuff?

B. It is the same size, but it has more mass.

Mass

How heavy something is. We measure it in grams (g).

Volume

How much space something takes up. We measure it in cubic centimetres (cm³).

Density

The mass of 1 cm³.

g/cm³

Grams in each cm³. The unit of density.

Is it right?
Thumbs up: right. Thumbs down: wrong.

1. 14 g and 2 cm³, so the density is 7 g/cm³

   Right

2. 15 g and 3 cm³, so the density is 45 g/cm³

   Wrong: divide, do not multiply

3. 36 g and 4 cm³, so the density is 9 g/cm³

   Right

4. 20 g and 2 cm³, so the density is 40 g/cm³

   Wrong: divide, do not multiply

5. 25 g and 5 cm³, so the density is 5 g/cm³

   Right

1. A block has a mass of 15 g. Its volume is 6 cm³. Find its density.

   2.5 g/cm³

2. A metal block has a density of 8 g/cm³. Its mass is 56 g. Find its volume.

   7 cm³

3. A cuboid is 5 cm long, 2 cm wide and 3 cm tall. Its mass is 90 g. Find its density.

   30 cm³, so 3 g/cm³