Key Words

Volume: three dimensional space occupied by an object

Density: Mass (weight) of matter per volume

Buoyancy: The power of a liquid to make someone or something float

Vocabulary:

Volume: the 3 dimensional space occupied by matter

Density: the weight of matter per unit of volume.

Demonstration:
1. Measure small containers to see if they are the same size.
2. Fill one of the small containers with water.
3. Put the small container on the scale to measure its mass / weight.
4. Fill the other small container with pebbles.
5. Put the container on the scale and measure its mass.

Mass of container with water: 3.6 ounces

Mass of container with pebbles: 6.0 ounces

Which material has more weight for the same volume?

Which material is more dense?