Emma asked a great question this week, "Why do boats float?" I said "Great question!" Then I started to ramble about buoyancy and realized I had no coherent explanation myself. So I googled it, then she and I performed experiments. In a nutshell, the way I explained it to her is:
- Things put in water displace the water. (Good examples were of her in the bath tub.)
- For something to float, it must displace the same amount of water, in weight, as itself.