Cookie catastrophe! In this project you will determine if different types of cookie sheets can cause cookies to bake differently.

This science fair project investigates what type of cookie sheet bakes the best cookies.

Determine whether people can actually taste the difference between âhealthyâ cookies and the traditional version.

Bake some cookies with an oven that collects sunlight and traps the shorter wavelengths (heat!).

Get ready for a yummy taste test! Just pour the milk -- and make sure you have some chocolate chip cookies on hand.

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.

This science fair project idea investigates if fats add to the flavor of food.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

This experiment will investigate whether reward or punishment is more apt to motivate people.

Crayons aren't just good for creating colorful masterpieces -- they're also great for science!

In this science fair experiment, high school students determine if all proteins denature at the same temperature.

Determine which metal has the highest rate of conductivity.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

Make an edible play dough with your child to help her develop her sensory and motor skills.

This science project has students study a group of volunteer liars actively lying to study the behavior of a lie. Students see if they can figure out the truth.

By dropping a magnet through a copper tube, kids observe the cool (and bizarre) braking effect produced by the eddy currents predicted by Lenz's law.

Find out whether we can create motion in a dish and as a result, create a wonderful and colorful show.

Explore the role of starches as thickening agents in food, and learn about the chemical properties of starch in the process.

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 explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

In this science fair project, students will try to discover if test subjects can detect the presence of Monosodium Glutumate (MSG) in food.

Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.

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

Using a toy race car kids create a visual model of the Doppler Effect.

In this exciting design challenge, your child will use design thinking skills to create a mixture that can inflate a balloon.

In this design challenge, students will be tasked with creating a bouncy ball polymer!

Check out this fun science project idea to explore different types of starches and learn how removing starch affects the quality and taste of food.

The objective of this experiment is to evaluate the effects of acid rain on plants.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.