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

This science fair project examines which fruits and/or vegetables will ripen prematurely when placed with ripe apples.

Find out whether putting something on top of a plant will inhibit its growth.

What cause the phases of the moon? Make a model to see how the positions of the Sun, Moon, and Earth cause the crescent, gibbous, quarter, full, and new moon.

Science fair project which measures the shadow cast by a meter stick at various times in order to predict the circumference of the earth.

Find out which type of sponge holds the most water.

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

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.

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

Science fair project that uses muriatic acid to develop fingerprints that would otherwise be invisible.

Find out whether packaged seeds actually do expire in this new science fair project idea.

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

In this microwave plant experiment, find out whether microwave radiation will affect radish seed germination. Will it help or hinder the plants' growth?

Does skin thickness really decrease fruit spoilage? Find out in this science fair project idea!

This science fair project idea determines if the color of light affects the growth of plants.

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

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

This science fair project idea researches the different layers of the atmosphere and creates a visual representation of the atmospheric layers.

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

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

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

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

Why do ants like sugar? Do ants like artificial sweeteners too? Kids find out with this great inquiry-based science fair project.

This science fair project explains the process of how the lungs expand and contract with the help of the diaphragm.

This science fair project idea builds models of various types of bridges and then determines which bridge design is the strongest.

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

Kids will create their own version of Richard Feynman's rubber band heat engine to learn about thermodynamics with this cool science fair project idea.

This science fair project demonstrates the principles of reflection through simple experiments involving mirrors and light.

Science fair project that determines whether mass and weight are the same or different.

This experiment tests which gender is better at catching how a magician performs his tricks.