This science fair project idea explores whether there is a connection to the color a person wears and the way their emotional state is perceived by others.

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

Score a bull's eye with this cool science fair project on horizontal projectile motion. Guide a marble to its target and predict its trajectory using math!

In this fun science fair project idea learn about the multiple sources of radio waves and fin out how difficult it is to block them.

Science fair project which compares the rates of photosynthesis for various light sources. Which type of light will be best for photosynthesis and why?

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.

In this exciting and empowering challenge, your child will construct a bridge using marshmallows and toothpicks!

The objective of this science fair project is to examine the cleanliness of salad preparation techniques.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

In this free science fair project idea, kids will conduct an easy electrolysis of water experiment to test solutions of salt, baking soda, tap water, and more.

Check out this fun science fair project idea for middle school students to learn about the effects of temperature on the density of a gas such as air.

This science fair project idea focuses on two classes of sugars monosaccharides (fructose) and disaccharides (sucrose or table sugar).

Kids learn how fiber optics work with a dramatic total internal reflection experiment using a fish tank, water, and a laser pointer.

In this fun experiment, learn about brand awareness and the influence of media on children by testing logo recognition in different age groups.

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

In this fun science fair project idea learn the difference between additive and subtractive color and why they are handled differently.

Science fair project which determines whether people are more likely to follow rules if they are easy to understand.

What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.

Science fair project idea that measures fuel efficiency in cars. Calculate cost per mile by comparing fuel cost and consumption data.

Science fair project that compares the freezing temperature of salt water and freshwater in order to learn about supercooling and condensation nuclei.

This science fair project idea determines the operating differences of AAA, AA, C, D batteries all with a 1.5 volt rating.

This experiment will evaluate bacterial content on toothbrushes before and after different cleaning methods to determine which method of disinfecting is best.

This science fair project idea models industrial oil spills and determines if they have an impact on wildlife living beneath the surface of the water.

In this simple circular motion experiment, you'll observe tangential velocity and learn about how acceleration and centripetal force affect an object.

This science fair project idea examines which is the best way to get rid of water stains (stains caused by just water) on fabric.

Kids learn about the color rendering index by finding the best lightning for makeup in this fun and original physics science fair project idea.

In this cool physics experiment, use double plane mirrors at various angles to learn about light reflection. Then, see if you can solve a puzzling problem!

Do you think heat can affect a plant's growth rate?

What are buttress roots? In this fun science project, make a model of a rainforest tree and learn how they help trees survive in the tropical rainforest!

Set off an a science adventure as you prepare a row of bee homes for your new visitors.