Tuesday, March 9, 2010

Science Projects

Today was Science Day at our homeschool group. It is always fun seeing all the experiements that the kids demonstrate. They all did such a good job!   

E made a rubber egg.

She showed how the acid eats away at the calcium shell of the egg leaving the membranes intact. 

S learned about water vapor and pressure and explained it with popcorn! She showed that when the tiny bit of water in the kernel of popcorn turns to water vapor, the pressure builds making the kernel explode.
That  is how we get popcorn.

B demonstrated his lesson on solids and liquids by making quicksand

He showed that the cornstarch and water mixture is a non-Newtonian fluids because the viscosity changes when stress or a force is applied.

Isn't science fun??!!?

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