Friday, July 8, 2011

Sinking and Floating

We have been looking at why things sink and float.
It is amazing what happens in nature.
This week we checked our prior knowledge, you know, what I already have in my mind.
Our next step was to make some predictions about why a rock sinks , bone floats, why a ten ton ship doesn’t sink and a ten ton ship submarine does.
We tested a solid ball, spoons inside a bag, little rocks, a bead, clay, paper towel, a bark and a spoon.
I wondered what other mystery will we learn about in our science next week.

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