Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

This science fair project demonstrates the principles of reflection through simple experiments involving mirrors and light.

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

This science fair project idea experiments with spinning color wheels and optical illusions.

This recipe makes bubbles that not only blow up nice and big, but do tricks and experiments! How do you do it? It's not a secret, it's science!

This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.

Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

In this project students experiment with making music using only glasses of water.

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

Help your child understand surface tension by showing them how they can create a "skin" on top of water.

The objective of this science fair project is to experiment with balancing everyday objects and observing the the effects of gravity on materials.

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

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

What's the quickest way to separate salt and pepper? Let static electricity do the work! Your child will be fascinated by this simple experiment.

In this experiment, students will create their own version of coquina, a sedimentary rock thatâs formed by seashells and sand, cemented by seawater minerals.

Set your young chemist up for an afternoon of science-fueled magic with a deceptively simple activity starring baking soda and vinegar!

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

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

This science fair project idea examines the reason boats are shaped and engineered.

Science fair project that compares the freezing temperature of salt water and freshwater in order to learn about supercooling and condensation nuclei.

If your science savy third grader is up for a challenge, let her bend light with a casserole dish!

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

Help kids tap into their inner inventor by teaching them how to make peanut butter through trial, error, and lots of taste testing!

This science experiment has students test whether a snail moves faster on concrete or dirt.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

This science fair project idea provides evidence that air is everywhere and takes up space.

Introduce your child to the world of motion and physics with a bit of marble play inspired by Sir Isaac Newton!

This easy at-home experiment is a great way to "see" science.

Handedness and footedness refer to whether people prefer to use their left or right hand and foot. In this experiment, test hand and foot dominance.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.