Today Auntie Mabel teaches us about buoyancy. It means that something floats more easily.
We pour some carbonated soda drink into a tall clear glass.
Then add raisins.
To our surprise, the raisins make bubbles and dance up and down.
Why do the raisins float to the top?
It is because of the air in the bubbles that make the raisins more buoyant.
The bubbles make the raisins float just like a life jacket makes a person float.
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