Learn how to make a food pyramid with animals in a a coniferous forest ecosystem around your home.

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

Learn whether writing things down really makes things easier to remember.

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

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

Learn all about balance and motion as your child designs a corn maze!

Learn how to be a bird scientist in this simple project of watching feathered friends in their habitat.

This project examines whether playing music during class helps students learn or if it distracts students from learning.

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

Learn how different types of soil affect how animal tracks form in this experiment!

Experiment with buoyancy to learn how a submarine rises and sinks in this classic science experiment.

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

Plants need water to grow. In this project we learn how plants transport water from their roots to their leaves

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

Science fair project which will teach you more about the foods that you eat, and learn which ones are healthier choices.

Learn about the power of exponents. The objective of this science fair project is to explore and understand how exponents are used.

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

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

Learn about the microclimate of your backyard by tracking rainfall, temperature, and observed weather with hand drawn charts and graphs.

In this insulation experiment, you'll learn which clothes keep you warm in the cold, and which make you shiver.

In this science fair project, we learn how air molecules move as a result of density, convection, and air currents.

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

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

Science fair project in which you will learn more about the natural world by preserving and identifying different animal tracks.

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

In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.

This project uses science and art to help students learn and teach others about Earth's endangered and extinct species.

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

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