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Does dough rise faster with unbleached or bleached flour? Investigate in this science fair project idea.

What cause the phases of the moon? Make a model to see how the positions of the Sun, Moon, and Earth cause the crescent, gibbous, quarter, full, and new moon.

Is horse manure a possible energy source in a crisis? Use calorimetry to find out how much energy horse manure can produce in this science fair project.

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

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

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

Here's an experiment that will have your child experimenting with cake ingredients to learn about the chemical reactions that happen when a cake's in the oven.

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

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

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

Sink or swim? Calculate the density of various fruits and vegetables using water and a kitchen scale.

Make sourdough bread...and learn some colonial history and modern science in the process!

Science fair project that helps you better understand density by comparing the relative densities of cans of Coke and Diet Coke.

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

Show your child how to construct a homemade thermometer. It's hands-on fun and a great way to learn about this important instrument!

This project examines what types of objects burn and which burn faster and cleaner.

Find out whether packaged seeds actually do expire in this new science fair project idea.

Wonder why bugs always fly around your lights at night? This experiment determines whether insects are attracted to the heat or the light.

Science fair project that teaches you about chemical indicators and how to make your own in order to identify various mystery solutions.

In this cool physics experiment, use double plane mirrors at various angles to learn about light reflection. Then, see if you can solve a puzzling problem!

This science fair project idea explores the different properties & interactions of sugar molecules.

You've heard all about oil spills, but can they really be that bad? After all, vegetable oil is in almost every yummy baking good from cookies to brownies.

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

This science fair project idea explores whether people have an innate feel for the passing of time from a few seconds to 20 minutes.

Kids will love making sugar crystals in this sugar crystal science fair project which teaches important chemistry concepts like saturation and solubility.

This easy at-home experiment is a great way to "see" science.

The goal of this science fair project is to demonstrate different ways to generate static electricity and record its effects.

Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.

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

This science fair project idea determines the probability of a coin landing heads or tails.