The jello one is kind of gross. Everything is is great but fishing plastic toys out of a jello mold seems gross. And the jello doesn't even look appetizing. A better scientific aspect of the same concept would be to float fruit bits in jello to show how density affects solids.

Ha! Funny. I thought the celery sticks were sitting in glasses of wine--sort of a new take on a Bloody Mary? But then I clicked thru...

The grape tinker toys can also be done with mini marshmallows - my daughter came home from school with some lovelies the other day.

I don't like making art out of food. It's the whole "someone in the world is starving' thing from when I was a kid and didn't finish my the food off of my plate. It just seems wrong when so many go without eatting at night...okay I'll get off my soap box.

The grape construction would be a great way to demonstrate lattice structure.

Try the book "Play with Your Food" came out in the late 90s or early 00s. Everything is edible, and it encourages you to shop for the unusual and "wrong" looking squashes and oranges, etc. Instead of ants on a log with celery, peanut butter, and raisins make real ants with grapes and pretzel sticks.

As long as the food is going to be eaten or used, am fine with food art else it is just plain wrong.

I don't see anything wrong with playing with food even if it's not eaten. It's a renewable resource and likely non-toxic. @denisegk, that's a great book!