Help kids tap into their inner inventor by teaching them how to make peanut butter through trial, error, and lots of taste testing!

This project is a vivid, concrete introduction to the basic but important idea that plants need sunlight and water to grow.

This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

What are the benefits of good posture? Kids will learn about the cognitive effects of good posture through conducting and observing a controlled experiment.

This science fair project idea explores whether color affects a person's emotional state.

This activity challenges students to use computational thinking as they create a sequence of commands that will make a robot navigate around several obstacles.

What do worms eat? Kids find out what kinds of rotting leaves and vegetables worms prefer in this cool compost science fair project.

Science fair project which measures the shadow cast by a meter stick at various times in order to predict the circumference of the earth.

This experiment explores whether reading text on a computer screen or type on paper leads to better retention of the information read.

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

Does your middle school teenager have good reflexes? Gauge his reaction time in this science and math activity that requires only a yardstick and a friend.

In this activity, students will create a stop motion animation by creating a clay figure and taking a series of digital photographs.

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

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

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.

Find out whether matte or shiny nail polish lasts longer.

Learn about the microclimate of your backyard by tracking rainfall, temperature, and observed weather with hand drawn charts and graphs.

This project explores ways to prevent static electrical shocks.

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

The moon doesn't produce its own light, so why can we see it shining in the sky? Learn about reflection and planetshine in this fun and easy science project!

In this investigation, an oil spill is simulated in a jar to observe the damage that oil spills have on the ocean and ocean life.

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

By incorporating natural materials and the powers of observation, your child will become a backyard naturalist while building early writing and drawing skills!

This science fair project idea examines whether boys and girls differ in reflexes.

Have your kid determine if a goldfish can be conditioned to expect food the same way Pavlov's dogs did with this fascinating science fair project.

In this project, a mnemonic is used to test how it increases memory.