Salinity Lesson

Muted (unless sharing)

Participate

Journal ready for notes

Thursday, April 25, 2024

Objective:

What is Salinity?

Essential Question:

Students will conduct an experiment to be
able to define Salinity.

What is Salinity?
Salinity is the measure of dissolved salts in water.

What type of water contains salt?
Ocean Water or Freshwater

Why is it important?
●Many organisms require certain salinity levels to survive, and
changes to that salinity, either due to natural cycles or manmade
activities can affect them. To much Salinity can affect freshwater needs.

Density is the mass of the substance or object and the volume taken up.

Salinity is one of the things that affects water’s density, and therefore
how the water moves.


Water with low salinity, such as freshwater, has a
much lower density than water with high salinity (that’s why you float
more easily in salt water).

Please have your materials ready and follow along with me as I give you each step!

​

Time to experiment!

Time to show what you know

We will now answer a few questions to show what you've learned

Fill in the Blanks

Salinity is defined as the measure of dissolved

in water

Multiple Select

What type of water contains salt?

• Dirty Water

• Ocean Water

• Freshwater

• Estuary

Open Ended

Why is the measure of Salinity important. What happens if there is to much or not enough salinity in water?