Sunday, February 13, 2011


Our Science Fridays group this past week, exploring crystal structures and how they grow.

Sugar crystals -- we set up experiment to go home with each child so everyone can grow sugar crystals at home. Next time we get together, we'll compare our crystals. And then eat them. (It's rock candy, you know!)

Borax crystals cleverly grown on chenille sticks (pipe cleaners) to create a "snowflake".

Alum crystals.

A larger Alum crystal (grown from tying a piece of fishing line to one of the above "seed" crystals and suspending in the alum solution for a week). This one shows the hexagonal structure really well.

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