When water has salt in it, like the ocean or an estuary, the density of that water will change as well.  Click here to learn more.

Grade Level:  2 - 8

Time:  15 - 30 minutes

Learning Standards: MS-PS1-7

Most of us know that oil and water do not mix.  In this experiment we will learn about the difference in density from oil to water. Click here to begin.

Grade Level:  3 - 6  

Time:  15 - 30 minutes

Learning Standards: 5-PS1-4

When substances are dissolved in water the density changes.  Adding sugar to water will change the water's density. Click here to begin.

Grade Level:  5 - 12

Time:  15 - 30 minutes

Learning Standards: 5-PS1-1, 5-PS1-4