Science fair project that compares tap water and bottled water for the presence of common impurities.

Discover whether cheap saline solution bottle cleans and disinfects just as well as more expensive kinds formulated with different ingredients.

This project uses toy cars to determine how friction and gravity affect cars and braking.

In this design challenge, your child will create a parachute for a small toy using typical household items.

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

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

Make an adorable nut buddy by crafting nature people out of nuts in shells! Buddies will take on their own personalities depending on the materials you use.

This basketball project explores the best way to make the perfect shot every time.

Have your child kick off their summer vacation by making a miniature water slide!

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

This experiment will use computers to examine how the famous Mandelbrot set can be manipulated in fractals.

Learn with makes water molecules work with this fun and easy science activity!

Here's a fun science experiment that's refreshingly tasty too! Turn regular water into a tasty treat perfect for consuming on a hot day.

Science fair project that uses distillation to convert salt water into fresh water.

In this activity, your child will be challenged to create a device that protects an egg when it is dropped from a height of about 10 feet.

This science fair project idea discovers whether there are some objects that do not fall at a constant rate.

This science fair project idea explores whether certain physical and mental traits run in the family.

Create your very own scented hand sanitizer that will help your child to keep those nasty germs at bay!

The goal of this science fair project is to demonstrate magnetic forces of attraction and repulsion using a magnet and everyday objects.

In this science fair project on the relationship between distance and time, kids explore the behavior of gravitational acceleration through direct observation.

Dinosaurs were huge creatures that left behind huge footprints that lasted for millions of years. In this science fair project, kids learn how dinosaur tracks were left behind!

Science fair project that examines learn how the angle of incidence affects the efficiency of solar panels. How does a solar cell work?

This project examines whether sugar substitutes are as sweet as real sugar.

This project compares the national anthems of several different countries to determine if there is a correlation between tempo and a country's latitude.

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

Kids learn about Brownian motion, diffusion, and how temperature is a key factor affecting the rate of diffusion in this cool science project.

This trick uses vertical and horizontal forces to help your child to push apart your hands apart, no matter how hard you try to keep them together!

This experiment evaluates how much influence an enticing package has on childrensâ willingness to try a new snack.

This science fair project idea studies whether a religious sleeping schedule relates to a higher IQ.

Can you fool your eyes and your brain with an optical illusion? The purpose of this science fair project is to demonstrate various kinds of optical illusions.