Ball bounce -- simple science fair project, good for 4th grade. How does the height a ball is dropped from affect how high it bounces.
How to Make a Simple Electric Motor Experiment | Education.com Scientist Badge
More Simple Science Fair Projects: Grades 3-5
A simple science experiment to show why leaves change color in the fall. One of 5 Awesome science experiments for kids!
Simple science, yet a complex lesson
Can you make an egg float? Simple Science Experiment
Simple Science Experiments and Activities for Kids
How to grow Crystal Geodes with 4 kitchen ingredients. This project is simple, stunning, and perfect for the science fair or a boring summer afternoon.
With a simple trick, the humble spud can be made into a battery, so could potato powered homes catch on?
Mrs. Jones' Creation Station: Jelly Bean Simple Science Experiment
Grade Science Fair Projects That are Simple Yet Illuminating
science fair projects 8th grade