Are you looking for more family science ideas? Let’s make crystals. First make a Salt Crystal Garden with Mrs. Stewart’s Liquid Bluing. These are consistently successful. Alum crystals make eggshell geodes. Follow the instructions to the letter. Let them ‘grow’ for a few days.
Have you tried Hot Ice? I have. My students have. Paul has. We have NOT had tremendous luck. Scroll down for gro-beads. They work well.
Try Ghost Crystals. These are polymers which expand with water. When the crystals dissolve in water, light passes through the crystals in the same manner as water, making them ‘invisible’, or technically having the same index of refractions.
You may want to try gro-spheres, too. Here are lesson ideas. Soil Moist is the cheapest source for these crystals in bulk, useful for Science Camp.
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