We went to the Museum of Science today. One of the first experiences we had there was in this lab where the girls were encouraged to discern which foods were mainly carbohydrates, which were fats, and which contained mostly proteins. Grace was game, Suki was interested in looking at the food but showed her characteristic shyness with adults.
At another section of the lab, chemicals were combined with different foods in solution. If they changed color, they revealed whether they contained carbohydrates, fats or proteins. Suki's favorite was the biuret reagent, a blue solution that turns violet upon contact with proteins.
Suki and Grace were allowed to squeeze the reagent into the beakers and check for the color change themselves.
This globe is outside the Van de Graaff generator. We thought the girls would enjoy seeing the lightning up close because they love electric storms so much... however, when the first zaps were seen all three of them either flung themselves to the floor or into our arms and began weeping. We had to hustle them out of there before another zap was heard, it was such a primal sort of panic. We could not believe it.
Push one button and a chime would be heard, press another and the lights in the middle would illuminate. The idea was to act in coordination with your fellow "fireflies" but these girls were more in the mood for mayhem.
There's a special Escher exhibit, and these girls liked sitting in front of the convex mirrors and trying to draw what they saw.
It was so much fun to see which pendulum swung fastest, especially when those pendulums were swings.
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