Hands-on activities can make science feel less like a school chore for kids. At the same time, baking-soda volcanoes and slime concoctions can be a clean-up nightmare for parents. Here are a few home ...

Let me be transparent–I’m not going to pretend these kitchen experiments won’t create a mess. They will. There will be vinegar on your floor, food coloring on hands that lasts a day or two, and ...