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.

Find out whether a longer airplane will fly farther or a wider paper airplane.

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

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

Turn the common pastime of constructing paper airplanes into a lesson on the physics of aerodynamics and flight with this fun science activity.

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

Little scientists will make inferences about hearing loss, pitch, and frequency in this great science fair idea that puts the human ear to the test.

Check out this fun and easy science fair project idea on germination of a seed and learn to identify exterior and interior parts of a bean seed.

Science fair project which determines whether plants are able to get enough nutrients from different types of garbage.

This science fair project idea determines what household items are good conductors of electricity.

Here's an experiment that will have your child experimenting with cake ingredients to learn about the chemical reactions that happen when a cake's in the oven.

Chlorine and chloramine are added to our tap water to kill harmful microorganisms. What is the best way to filter these disinfectants in your drinking water?

This science fair project idea explores how much force is needed to move a lever at different distances from the fulcrum.

Use chemical analysis to identify a variety of mystery powders that look the same but actually have very different properties.

This science fair project idea experiments with spinning color wheels and optical illusions.

This science fair project idea determines what household items are good conductors of electricity.

This science fair project idea attempts to train a worm to complete a simple maze in order to find out if worms can learn and remember.

Science fair project in which you will start a fire from scratch without using matches or a lighter.

This science experiment tests if dog saliva can really help heal wounds.

This science fair project idea determines if the temperature of rubber effects how high it bounces.

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

This science fair project idea measures the growth of bread dough and finds out how long it takes for the dough to stop rising.

Total alkalinity and pH personal care products are controlled to prevent skin irritation. Learn more about basic and acidic substances in this science 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.

Science fair project that teaches you about chemical indicators and how to make your own in order to identify various mystery solutions.

In this cool experiment, learn how to find specific gravity of minerals using liquids of different densities to see which substances and items sink and float.

This Mother's Day, mix in some fifth grade science learning to create this fabulous fudge!

In this science fair project, students will try to discover if test subjects can detect the presence of Monosodium Glutumate (MSG) in food.