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

In this Halloween-themed activity, young learners will find out what happens when they mix two household items together to create a surprising chemical reaction.

Check out this cool science fair project on identifying rocks and minerals for kids.

Create safe lightning for kids! They'll learn how to make lightning at home with this fun science fair project idea illustrating static charges and grounding.

This experiment evaluates if a noisy environment makes it harder for test subjects to perform tasks that require hand-eye coordination.

This experiment investigates the relationship between the temperature of a candle and its burn rate.

Help your child create a tasty treat that will demonstrate exactly how frogs survive a freezing season.

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.

This science fair project idea explores whether mint, known for its âcooling sensationâ really does lower temperatures.

In this challenge, students are tasked with creating an insulated cup that will keep beverages colder for longer than a regular cup.

This science fair project idea compares biodiversity between drops of water.

This science fair project idea determines what household items are good conductors of electricity.

This science fair project idea examines whether the colors of the spectrum respond differently in the thermal aspect when radiated by the sun.

Science fair project that develops latent fingerprints on a non-porous objects by converting superglue from a solid state to a gaseous state.

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

Marshmallows are made of sugar, water, and air pockets. Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.

What are buttress roots? In this fun science project, make a model of a rainforest tree and learn how they help trees survive in the tropical rainforest!

Show your child that the simplest ingredients (salt and water) can be used to illustrate the concept of density!

This science fair project idea determines if the temperature of rubber effects how high it bounces.

If your fourth grader is obsessed with all things glow-in-the-dark, then here's an activity that will really light up her imagination!

Glass is see-through, but usually you can still see that it is there. In this experiment, we use baby oil to make glass go completely invisible.

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

This science project teaches students the relationship between compost and plant growth. Students conduct an experiment with different types of compost.

A simple science experiment exploring the physics of water pressure that's been amazing people since Medieval times.

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

Put your young paleontologist's puzzle-solving skills to the test by having her hunt for dinosaur bones and then assemble them to create dinosaur skeletons.

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

Use chemical analysis to identify a variety of mystery powders that look the same but actually have very different properties.