Matter
Density
Periodic Table
100
What are the main three states of matter?

Solid, Liquid, Gases

100

This has a density of 1 gram per unit of volume.

Water

100

How many elements are on the periodic table? 

118

200

What has a definite shape and definite volume? 

Solid

200

Why can we float better in saltwater than in freshwater?

Saltwater is more dense than fresh water.

300

What has no definite shape and no definite volume, low attractive forces and has high kinetic energy?

Gases

400

This takes the shape of its container and has a definite volume.

Liquid

500

Vibrates in place because it is tightly packed together. 

Solid