STEM & Inventions
Homemade Slime Shop
Mix, color and package your own slime recipes: kitchen chemistry kids love to buy.
- Ages 8–12
- $105–$205
- Some prep
STEM & Inventions business ideas for kids
For kids who love experiments, a STEM business turns ‘what happens if…’ into a product. Every batch is a chance to test, measure and improve.
Because these ideas often involve real ingredients or tools, each one comes with clear supervision and safety notes for parents.
2 ideas
STEM & Inventions
Kitchen-Chemistry Bath Bombs
Use real chemistry (an acid plus a base) to make fizzing bath bombs in fun shapes and colors.
- Ages 9–12
- $93–$193
- Some prep