This science fair project idea explores plant growth from a bulb, root, and a stem and investigates asexual plant reproduction.

This science fair project explores how osmotic pressure forces water through the root up into the plant.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.

This science fair project idea investigates the difference in reaction times between boys and girls.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.