As a follow up to this week's Messy Fingers, the Tumbleweed and I made an aquarium. Not a real one, but one made of Jell-O. The Tumbleweed made two hypotheses before we started:
1- The fish would sink
2- The Jell-O would take "all night" to get hard
We started by mixing up a double batch of Jell-O. The the Tumbleweed put in some gummy fish. She was quite pleased with herself for knowing that they would sink. We stuck the bowl in the refrigerator to solidify.
After about an hour we returned to check on our aquarium (It didn't take all night). The fish were nice & cold and still stuck to the bottom. I took the jiggly bowl out and we tried adding some more fish. They "floated" - a few even tried diving in but didn't make it very far.
We even had a few minutes of fun to make a Jell-O tidal wave by jiggling the dish - only the fish on the top moved.
**Update - after the night in the refrigerator, you can't make a tidal wave anymore. The Jell-O is too hard.
11 months ago