Found this on kceadventures.com via Pinterest. This was an easy after-dinner project. We didn't get into the density of things but he made some pretty good guesses by holding the foods before putting them in the water.
Minus having the WORST water balloons ever, this was fun! I wrote out 1-20 in chalk and then we worked on simple addition. I would ask him (example) "1+2" and then we would count it and he would throw the water balloon on the correct answer. Only our water balloons wouldn't pop. Again, worst ever. So, we had a small water balloon fight in the grass (the only place they would pop!) and then I had him jump on the right answers for our game.
I like to have him help me as much as possible. How else is he going to learn this stuff? So, here we are cutting meat for our supper. This kind of stuff isn't the most exciting but it's good practice as he grows.
Back to weather! We made rain! Simple! Water in a glass, shaving cream on top, and food coloring. We used too much shaving cream at first, so it took forever (we both lost interest) while the food coloring made its way through the shaving cream. I swiped some of it off and we tried again. Ta-da!
One of my projects for him this week was a Froot Loop lacing project for his fine motor practice. Instead, we made this jewel at his cousin's art birthday party! He was very proud of it and I had the privilege of wearing it for the afternoon.