Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

This science fair project idea examines how well individuals can remember a story they were told and how accurately they pass that story along.

The purpose of this science fair project is to build a basic radio.

This educated-guessing game is great for preschoolers. This activity helps your child work on her reasoning skills.

Let your young scientist explore a brave new world of sound with an experiment that just requires a handful of common household items.

Teach your child the meaning of recycle and reuse by repurposing plastic spoons as plant markers for your vegetable garden.

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

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

Take this "paper plate snack test" with your child for a hands-on lesson in making healthier choices to teach your child about what's in his food.

This fun science fair project idea helps students learn how acid rains are formed and explore how acid rain damages the environment.

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

Here's a fun activity that will have your child researching, collecting, and charting plant specimens from the neighborhood.

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

Have your child build his own mini waterfall, and help him develop his planning, problem solving, and architectural skills.

Science fair project which determines whether plants are able to get enough nutrients from different types of garbage.

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

Science fair project which evaluates different athletic shoes in order to find out whether any of them affect a person's ability to run.

This science fair project idea compares biodiversity between drops of water.

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

This science fair project idea discovers if an artificial light source will yield the same plant health and growth rates as light from the sun.

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

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

This balloon-powered car project is a great way for your kid to learn about energy and how it can be used efficiently.

Your kid will be captivated as she watches liquids change color before her very eyes during this fun science project that introduces some chemistry basics.

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

This science fair project idea explores whether there is a connection to the color a person wears and the way their emotional state is perceived by others.

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.