Since we’re heading to the Atacama desert and getting the opportunity to visit and swim in the salt lagoon, I wanted to do an experiment with the kids to show them how the strong salt content of the lagoons with make us extra buoyant. So we took two glasses of warm water, added 3 tablespoons of salt to one glass, stirring until the salt was dissolved. Then placed an egg in each glass. The egg in the plain water sunk, the egg in the salt water floated.
The kids are excited to see how high they float when we swim the blue salt lagoon. Yay, Science!