Density - Is all water the same? - 11/30/11

1. Which is denser, warm water or cold water?

2. Which is denser, salt water or fresh water?

Hot water (red) is less dense than cold water (blue).

 

Let's get some of this ice, cold water!

Carefully layering the fresh and salt water.

Fresh water (yellow) is less dense than salt water (green).

 

Liquid Density - Fresh Water vs. Salt Water

In today's activity, the students investigated if there were any difference in the density of fresh water and cold water. The fresh water was colored yellow and the salt water was colored green. Eventually, the kids determined that salt water is more dense than fresh water.