Indoor Shore: What Makes the Ocean Salty?

What's the difference between ocean water and sink water?

Some K thoughts:

Ocean water is salty.  

We don't drink salt water.  

"We [drink salt water]  on Passover.  We dip the herbs in salt water and eat it.  We are Jewish."

Then off to mix different powders and substances including salt with water, cabbage juice, baking soda, baking powder, and lemon powder.

Thanks to Sophie, a parent volunteer for taking the pictures.