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

Certain fruits can change gelatinâs ability to set. In this experiment, kids will discover what happens when gelatin meets pineapple enzyme.

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

In this enlightening transpiration experiment, kids will explore how the loss of water from plants through transpiration contributes to the water cycle.

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

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

While your cells are much too small to see without a microscope, you can create the look of a cell in your very own home with just an egg and vinegar!

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

Learn how to make a food pyramid with animals in a a coniferous forest ecosystem around your home.

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

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 fair project idea determines what household items are good conductors of electricity.

How does frost form? How fast does it form? Do this simple science project using a plastic glass, rock salt and some water to learn about deposition.

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

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.

This science fair project idea explores substances that cause a bubble to last longer.

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

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.

This science fair project idea determines which method of hand cleansing is the most effective.

Build a 3d animal cell model with this cool science fair project, which helps kids visualize and understand the function of a cell's parts and organelles.

Make a backbone model to explore human anatomy and life science.

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.

Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

How powerful is the reaction between baking soda and vinegar? Find out here!

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

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.