09/03/2026
Today Mr. Rickard kicked of the September Science Lab lesson for our Third Graders. Each class visits him in the science lab once a month. Their first science unit in third grade is how things interact with water. This month's lab lesson is on the myth that salt disappears when it dissolves.
They look at salt under a microscope. Then measure the mass of a container of water. Pour salt in without stirring and measure the mass again. The mass is recorded each time. Then they stir the salt in and measure the mass again.
They see the mass is the same between the water with salt at the bottom and with the salt dissolved. Therefore the salt did not disappear. It just broke down into really tiny pieces.
Then they look at salt water under a microscope and find the tiny bits of salt confirming that its still there.