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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.

Help your child get a grasp on what it was like to build gigantic ancient structures with this easy engineering activity about science and physics.

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

This science fair project idea explores whether factors such as temperature and concentration affect the pH of a solution.

This experiment uses a yeast solution, liquid detergent, and hydrogen peroxide to produce an exciting reaction like no other!

Want to make Halloween truly eerie? Science to the rescue! These ghouly hands come alive with a little help from simple chemistry.

Can you plant the insect-attracting borage plant to increase the amount of beneficial insects in your garden? Find out in this experiment!

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

Construct and experiment with a periscope using reflected light rays to gather an image.

The purpose of this science fair project is to build a basic radio.

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

Little scientists will make inferences about hearing loss, pitch, and frequency in this great science fair idea that puts the human ear to the test.

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

Here's a fun and simple activity to introduce your child to surface tension, and pull an awesome stunt in the process!

The goal of this project is to create an exciting topographical map out of dough.

Take a dive into the candy jar with this yummy science experiment.

This science fair project idea determines which method of hand cleansing is the most effective.

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

This 4th of July, explore fourth grade science and make some safe fireworks in your own backyard using soda pop!

In this fun activity, your child will create their very own solar oven to bake s'mores!

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

Would your child like to learn about a hidden world? All she needs to do is open her box of markers!

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

Your fourth grader will be astonished to discover the significance and intricacies of his spine as he builds a model of a human vertebral column.

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

In this fun experiment, learn about brand awareness and the influence of media on children by testing logo recognition in different age groups.

Make sourdough bread...and learn some colonial history and modern science in the process!

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

Here is a quick experiment you can conduct at the playground to introduce or reinforce the concept of Newton's First Law, The Law of Inertia.

Here's a fun activity that will introduce your fourth grader to the concept of frictionless motion by constructing a hovercraft.