Investigating seawater

In this activity, students investigate some of the properties of seawater.

By the end of this activity, students should be able to:

• discuss that salt dissolves in water

• explain that dissolved salt does not change the volume of the water

• discuss the differences in density between freshwater and seawater

• discuss how freshwater in the form of rain or melting ice reduces the salinity of the saltwater on the surface.

Download the Word file (see link below) for:

• introduction/background notes

• what you need

• what to do

• student handout.