This science fair project idea provides evidence that air is everywhere and takes up space.

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

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

In this activity, your learner will be challenged to create their own tic-tac-toe grid out of building blocks.

Explore scientific concepts with this experiment that introduces kids to the scientific method!

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

Here's a math, science, and social studies activity: help your kindergartener become a "coin archaeologist" by examining how different coins look and feel.

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

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

Why does purple cheese look nasty? Because color plays a big part in how we perceive the taste of different foods. Are birds just like us in this respect?

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

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.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

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.

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

In this hands-on design challenge your child will make their very own Rube Goldberg Machine.

Explore how sound waves are reflected and absorbed by producing echoes. Analyze which locations produce echoes.

Help your child explore chromatography, which is the process of separating colors or pigments, and create a neat art project in the process!

Help your kindergarten or first grade child use his creativity to make a beautiful magnetic patterned structure while discovering the wonders of magnets.

Throughout history, people have used song as a teaching and memory tool. This project explores whether song improves a person's ability to retain information.

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.

In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

It's not actually that hard to get energy from garbage! Kids learn how to make biogas in the form of methane with this cool and easy science fair project idea.

Examine the effect of pressure on carbonation in soda.