In this challenge, students are tasked with creating a model roller coaster that a marble can travel through.

Check out this cool science fair project on identifying rocks and minerals for kids.

The buoyant force of water explains why some objects float in water. But why do some objects sink? Find out in this physics experiment and learn about density.

What is vegetative reproduction? Find out how you can clone plants and regrow cabbage from a stem in this cool experiment!