This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

In this project children practice the scientific method while playing with puffy paint.

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

This science fair project idea investigates if webbed feet help a duck (and others) swim.

This science fair project idea investigates which objects float and sink in honey, water, and oil.

This science fair project idea explores how length affects the weight a bridge can hold.

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

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

This science fair project idea examines which type of insulation holds in the most heat.

This science fair project idea explores whether talking to a plant will help it grow.

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

Ever wonder why refrigerator lights turn off when you close the door? Does the darkness prevent food from spoiling? This experiment, determines just that.

Discover whether a metal will expand under hot water.

This science fair project will help students learn about non-vascular plants, such as mosses.

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

The objective of this science fair project is to explore the relationship between acidic and basic compounds.

This project investigates the affect of storage temperature on microwave popcorn.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

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

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

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

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.