These science fair experiments demonstrate the chemistry of rust and the oxidation process.

Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!

How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!

In this exciting and empowering challenge, your child will construct a bridge using marshmallows and toothpicks!

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.

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

The goal of this science fair project is to assess the acidity levels of common food and household products using pH test strips.

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

This project explores whether music affects the growth and health of plants.

High school students recreate Michael Faraday's experiment in this cool science fair project that induces current in a coil of wire.

How do you tell time without a watch? Use the sun! This simple activity will show your child how to build his own sundial.

Science fair project idea that compares number and relative sizes of leaf stomata. Collect leaves of plant species, identify, observe stomata with microscope.

Science fair project that determines whether spreading a moss soup over an area increases moss growth.

Teach your child some scientific basics as you explore the densities of various liquids in this fun experiment.

Your second grader will love this simple soda bottle race car activity. Make a ramp and customize your car for an entertaining way to learn scientific concepts.

This science fair project idea investigates how different disinfectants work in killing germs.

Learn how to make a periscope with this cool engineering science fair project idea, and learn about optics to learn how a periscope works.

Determine which material produces the strongest static charge.

This project is a vivid, concrete introduction to the basic but important idea that plants need sunlight and water to grow.

Make an edible play dough with your child to help her develop her sensory and motor skills.

Help your child create a written message and practice their letters using sticks they find in nature. Here's how to get started.

This middle school science fair project determines whether DNA is most easily extracted from under-ripe, ripe, or over-ripe strawberries.

Check out this silly game that will put your kid's animal habitat knowledge (and acting skills) to the test.

Some fossils have been been preserved for billions of years! Help your kid understand how fossils are created and preserved with this crafty project.

In this science fair project, students create their own miniature salt flats at home.

Make a spring collage with your child to get them outside and those creative juices flowing!

This science fair project explains the process of how the lungs expand and contract with the help of the diaphragm.

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.

Make these homemade shell fossils and introduce your child to the wonders of science!