Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

There is debate about whether chalkboards or whiteboards are better. This experiment explores which leads to better retention of visually-displayed information.

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

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

This science fair project idea assesses the effect of music on work performance.

In this science fair project, students will use four different household objects to see which ones form the most or best crystals.

Learn how acid-base catalysis affects enzymes and enzymatic reactions in this science project.

Kids learn how to manipulate additive and subtractive colors to send secret messages with red colored filters in this cool science fair project idea.

How fast does light travel in different mediums? Kids conduct a cool refraction experiment in materials like water and air for this science fair project.

How do crystals form? In this science fair project, students will use three different saturated solutions to see how different minerals form crystals over time.

With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.

The goal of this fun science experiment is to explore the limitations of sight and learn working of the human eyes.

This science fair project idea examines if there is a reason that musical notes are at the pitches they are.

This project concerns activity happening millions of miles away, on the sun.

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

A project to reinforce learning about the layers of the rainforest, rain forest ecosystem, and the greenhouse effect.

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

The objective of this science fair project is to determine whether drawing with the right side or the left side of your brain will produce a better picture.

Use applied math to model orbital eccentricity in this cool science fair project for 7th grade.

This science fair project idea identifies and understands adaptations in birds.

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

In this fun science experiment, make a balloon car and test it on different surfaces to learn about sliding friction and rolling friction.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

Science fair project that demonstrates the different phases of the moon by physically representing them with construction paper and a shoebox

This project examines the concentration of dissolved oxygen in water, with and without oil.

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

Use a dichotomous key to identify plants or animals.