Does electricity move better through thick wires or thin ones? kids will conduct this classic electricity experiment for this science fair project.

Use an Elihu Thomson apparatus, also known as a ring launcher, to learn about electromagnetism concepts and the properties of various metals.

Determine if gender affects the ability to identify different smells.

Can playing video games trigger an adrenaline rush even though there's no real danger? In this cool experiment you'll learn all about how fight-or-flight works!

Which sunscreen is most effective at blocking the sun's harmful UV rays? Test the SPF of various sunblock brands in this cool science project!

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

This science fair project idea explores whether factors such as temperature and concentration affect the pH of a solution.

The objective of this science fair project is to experiment with balancing everyday objects and observing the the effects of gravity on materials.

Demonstrate how you can make your own compass using a magnetized needle. It also allows you to compare magnetic north and geographic north.

Can you plant the insect-attracting borage plant to increase the amount of beneficial insects in your garden? Find out in this experiment!

Have fun with bubbles and find out why there are bubbles in your tap water in this cool science fair project idea.

In this experiment, students find out what happens when a less-dense fluid interacts with a denser one, replicating the effect of cooler solid rock on magma.

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

Kids build a rainforest food web to explore trophic levels in this cool science fair project for 4th grade.

With this cool floating rocks project, your child will get some hands-on experience with buoyancy and learn why certain rocks like pumice are able to float.

This experiment explores how microwave radiation affects fungi, bacteria, and plant life.

Learn about the Atwood Machine and Newton's 2nd Law with a pulley and masses of different weights in this physics science project.

This project explores the effectiveness of various common household ingredients in cleaning tarnished and oxidized coins.

The objective of this experiment is to conduct a ganzfeld experiment and determine if extrasensory perception (ESP) can be observed.

Science fair project that tests how heat affects the chemical reaction between a seltzer tablet and a glass of water.

Study the effects of wind and temperature on evaporation. Place wet sponges in different environments, check at regular intervals, track time required to dry.

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

Learn about sound physics and do a survey experiment to explore the difference between sound and noise in this science project.

Looking for a fun project on energy? Check out this fun elementary school science fair project idea that demonstrates chemical energy in a bottle.

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

This science fair project idea teaches about the size of two different systems: the solar system and an atomic system.

Discover the force of water! This article provides step-by-step instructions for creating your own science experiment.

Science fair project that helps you better understand density by comparing the relative densities of cans of Coke and Diet Coke.

High school students recreate Michael Faraday's experiment in this cool science fair project that induces current in a coil of wire.

Explore properties of liquids and how temperature and salinity effect surface tension of liquids in this fun- filled science fair project idea.