Kids will learn how to clean fish tank the natural way. Add catfish to the tank and see if your water gets cleaner.

Future engineers, unite! Discover how to keep a sandcastleâs bridge from falling into the moat.

Are you ready to pilot your own airplane? Well, then take to the skies with this high-flying project!

This experiment works due to a simple principle: plants need light. Build a shoebox maze and watch the plant work though the obstacle course, searching for sun.

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

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

Science fair project that examines various techniques for removing wrinkles from polyester garments to understand why polyester garments become wrinkled.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

In this hands-on design challenge your child will make their very own Rube Goldberg Machine.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.

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.

This weather spinner will improve observation skills by encouraging children to examine and track weather details and patterns.

Learn about calorimetry, make a bomb calorimeter, and experiment with combusting different nuts to see which one produces the most energy!

This experiment investigates whether left-handed test subjects have better memories than right-handed participants.

Show your preschooler how to create a simple windsock using a colorful piece of tissue paper, a pipe cleaner, and yarn.

The project compares three different methods of testing turbidity in water: the secchi disk, spectrophotometer, and turbidity test kit.

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

A cool physics science fair project idea for 7th grade exploring the application of distance, velocity, and time equations.

Check out this cool science fair project idea to explore the risk of mechanical deterioration of artifacts placed in a storage box due to mold outbreaks.

The objective of this project is to evaluate whether a top will spin at different rates during different phases of the moon.

The purpose of this science fair project is to investigate whether cooking seeds before planting will speed up germination and growth.

Is our water polluted? Help your young scientist understand the importance of taking care of the environment with this simple experiment.

This experiment evaluates if the lighting in a room affects the speed at which test subjects perform mental tasks.

Check out this cool science fair idea on why hard fruits become soft and learn how to compare the sugar content between ripe and unripe fruits.

Give your child a chance to experiment with how things grow. And throw in something extra to up the fun factor even more...her very own grass pet!

This high school science fair project investigates if small changes in your diet alter the pH of your saliva.

In this fun experiment, we'll find out how color affects heat absorption!

Show your preschooler how to construct this very special planter for Mom. It makes a great pick-me-up, and it's easy for kids to make in a flash!