We are continuing our ocean study and did a fun sink or float ocean experiment today.
We hypothesized if it is easier to float in the ocean or in a swimming pool/lake? And why?
To test this hypothesis we filled one container with tap water (1.5 cups). In the second container, we added 1/3 cup salt to 1.5 cups water to make our salt water. Stir until all the salt is gone. I explained that the salt water is like the water in the ocean. We talked about how "salt gets in the ocean". One way is through rivers, which run over rocks containing salt and then carry it into the ocean. Another way is through volcanoes, erupting under water and releasing salt into the water.
We added a raw egg to each container.
Float or Sink is part of their Hello Ocean Lapbook.
They have a fun little lap book component to go with this experiment that you can do with your child after doing the experiment :)