Some lab details to set the scene.
One of the main events was Oobleck. It's a non-newtonian fluid if you want to look it up on wikipedia. Basically corn starch and water mixed together acts sometimes like a solid and sometimes like a liquid and is very fun to play with.
I forgot the birthday boy doesn't do goopy things. He just watched.
We also did a group experiment- elephant toothpaste. It was a huge hit. We made LEGO robots, ate oobleck oreo pops and made our own ice cream in a bag- another change in state, liquid to solid.
Oobleck Oreo Pops
Of course we needed costumes! The boys lab coats are actually small white dress shirts and their goggles are from the dollar store. The adult lab coats were borrowed so parents and grandparents were also easily identifiable as scientists. The boys were very lively so we were more than thankful for the grandparent scientists' help!
Erlenmeyer Flask Cake from Auntie N and Uncle G
Happy Birthday buddy!