This science project has students collect wood samples and invent new uses for different types of wood based on its properties.

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

How clean is the air we breathe? The answer might surprise you. Learn how to investigate local air quality with this cool science fair project.

This cool and easy elementary school science fair project idea provides the basic information on the use of our senses to experience the world about us.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

This science fair project teaches students about wilting and browning of salad greens.

In this project, all you need is a protractor to learn how to use the altitude of Polaris to find latitude on Earth. Polaris is also known as the North Star.

Compare animal and plant fats and observe, and record, and draw conclusions about their similarities and differences.

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.

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

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

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

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

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

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

Gymnosperms are coniferous trees that reproduces using pine cones to spread seeds. Check out this simple pine cone experiment to learn about the process!

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

In this fun science project, learn about what happens to cut fruit and experiment with how to stop apples from turning brown.

In this pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.

This experiment has students record rat behavior to learn about the benefits of rats and research rat myths throughout history.

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

What chromosome combinations determine a fetus gender? Use probability to think about whether a sperm and ovum will create a male or female in this project.

In this experiment, you'll make a seafloor spreading model to learn more about how plate tectonics work and create mid-ocean ridges.

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

In this plastic wrap science fair project, you'll learn about polymer permeability and find out which plastic wrap keeps food from dehydrating best.

What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.