salt

Do you know why you float more in the sea than in the pool?

Summary

We did research on salt: what it is, what it is made of and its properties.

Description:

After generating our hypotheses on the initial question, we began a study on salt. Where does it come from? What is its composition? How does it behave when it comes into contact with different materials? and how does it behave when dissolved in water?

We conducted several experiments on saline solution, using an egg to test the buoyancy of salt and freshwater.

We have made salt from sea water

We have frozen fresh water and sea water and observed which one takes longer to freeze.

Motivation and aims

know what salt is and what are its characteristics

Know concepts such as density, buoyancy, dissolution

Lessons learnt

How to get salt from seawater

salt characteristics

salt water freezing

Dissolution in water

Density