This science fair project idea determines the most effective method of preserving food.

This science fair project idea examines which type of insulation holds in the most heat.

This science fair project idea explores the different properties of matter.

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

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.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

The project determines the forces that cause paper airplanes to fly and determine which type of paper airplane flies the farthest.

In this project, vinegar and salt act as preservatives keeping bacteria from growing in the bouillon mixtures.

Plants and light seem to be good buddies, but how far does the friendship really go?

This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.

In this science fair project, learn how a mineral streak is made and how it can help identify an unknown mineral.

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

Science fair project that determines whether landscaping fabric impacts the ability of plants to receive water.

In this fun design challenge, your child will get creative with making structures out of toothpicks and gumdrop candies.

Understanding absorption means understanding why certain fibers and materials can absorb water! Kids will see absorption in action in this simple project.

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

Are you ready to be a detective for science? Then get out your magnifying glass and start studying fingerprints!

Would your dog prefer homemade or store-bought food? Raw or cooked? Test your dog's preferred diet in this fun experiment.

Learn about savanna flora and fauna in this science project! Take a look at characteristics of tropical grassland plants and animals that help them survive.

Do you think heat can affect a plant's growth rate?

Set off an a science adventure as you prepare a row of bee homes for your new visitors.

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

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

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.

What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

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