Use pepper and soap to discover some fun facts about the properties of water.

Construct a model of radioactive decay. Learn more about radioactive decay by modeling the process using coin flips.

This science project challenges students to learn about and classify weeds and discover new practical uses for weeds.

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

This science fair project will help students learn about non-vascular plants, such as mosses.

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

Science fair project that creates a pamphlet to help others learn about Epilepsy, its causes, symptoms and treatments.

Look for correlation between pH values of commercial soaps and detergents and manufacturer claims about eye irritation hazards.

This science project teaches students about organic farming and the benefits and disadvantages of commercial plant food.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

Research what is known about Alzheimer's disease and its treatment, and then prepare a script for television to educate the public.

Learn about this simple machine and make a pulley of your own to use for fun science trials.

This experiment will explore how manipulating a graph of historical information might reveal new information about data.

What are the benefits of good posture? Kids will learn about the cognitive effects of good posture through conducting and observing a controlled experiment.

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.

Kids will learn about insulation, heat conduction, and the economic benefits of energy efficient windows in this cool science fair project.

Use a microscope in this experiment to learn about different kinds of "good bacteria" that turn milk into yogurt!

There is debate about whether chalkboards or whiteboards are better. This experiment explores which leads to better retention of visually-displayed information.

This simple project makes young children aware of their sense of smell and its capacity for providing them with information about their world.

Learn about what happens to a current-carrying wire in a magnetic field in this cool electromagnetism experiment!

In this science experiment, observe convection currents forming and learn about how heat energy moves in liquids from hot to cooler areas through convection.

Learn about the fruit fly life cycle in this experiment. Capture fruit flies to examine various stages of insect metamorphosis.

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

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

This science fair project idea teaches what wildlife rehabilitators do and about the process of wildlife rehabilitation.

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

Explore the role of starches as thickening agents in food, and learn about the chemical properties of starch in the process.

Want to see a great example of Newton's first law? Kids will learn about basic physics with this fun, ballistic experiment.