exploring how things float and sink in salt water and fresh water.
this project was just the right amount of educational mixed with entertainment, as big sister e and little sister b had no problem chatting along with me about the differences between fresh water and salt water and why some items might float when others might sink.
at the same time, they loved getting to use their own cards to predict what was going to happen each time and then drop the balls into the water to see the results.
after having so much fun with the balls and soap that came along with the kiwi crate, i have no doubt that 