Find out whether putting something on top of a plant will inhibit its growth.

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

In this project, waves of vibrations are experimented with using water in glasses.

This science fair project idea researches the different layers of the atmosphere and creates a visual representation of the atmospheric layers.

In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

Have your kid determine if a goldfish can be conditioned to expect food the same way Pavlov's dogs did with this fascinating science fair project.

The goal of this project is to create an exciting topographical map out of dough.

This science fair project idea experiments with spinning color wheels and optical illusions.

Examine the effect of pressure on carbonation in soda.

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

In this fun activity, your child will create their very own solar oven to bake s'mores!

This fun and easy middle school science fair project idea explores the topic of pollution and demonstrates if polluted soil affect the growth of green plants.

In this science fair project, students make their own rain gauge to measure rainfall.

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!

In this experiment, you'll make a seafloor spreading model to learn more about how plate tectonics work and create mid-ocean ridges.

Have your child kick off their summer vacation by making a miniature water slide!

In this CD hovercraft science project, students will construct their own DIY hovercraft.

This science fair project idea determines if the temperature of rubber effects how high it bounces.

Find out whether a longer airplane will fly farther or a wider paper airplane.

Science fair project that determines whether landscaping fabric impacts the ability of plants to receive water.

This science fair project idea provides evidence that air is everywhere and takes up space.

This science fair project examines how seeds hitchhike on animals and clothing.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

This science fair project idea investigates how magnetism can defy the force of gravity.

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

Soil and energy don't go together, right? That would be as bizarre as a pairing of peanut butter and marshmallows! Well, actually...