Have your child build a model of a coral polyp, one of the tiny animals that composes a coral reef.

In this activity, children will let their imagination run wild as they design and build a new planet in the solar system.

Score a bull's eye with this cool science fair project on horizontal projectile motion. Guide a marble to its target and predict its trajectory using math!

The objective of this science fair project is to determine whether drawing with the right side or the left side of your brain will produce a better picture.

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

Explore the craters, maria, and highlands on the surface of the Moon! In this fun science project you'll create a 3-D model of the moon using paper mache.

This activity is a great way to stretch the boundaries of your child's imagination and build up important critical thinking skills.

This kinesthetic learning activity will help your fourth grader get a firm grasp on the immensity of the solar system.

In this science fair project, kids measure how weather conditions affect how fast a puddle evaporates.

How fast does light travel in different mediums? Kids conduct a cool refraction experiment in materials like water and air for this science fair project.

What is a barycenter? Kids learn how gravity and mass influence the orbit of binary systems like planets and moons or stars and planets in this cool experiment.

What is condensation? Little mad scientists will learn about condensation, states of matter, and air pressure by conducting this cool science experiment.

Explore the concept of receptive fields and why different parts of our body have different levels of sensitivity.

This science fair project idea tests whether it is true that humans are in the morning than later during the day/night.

Bake some cookies with an oven that collects sunlight and traps the shorter wavelengths (heat!).

A mixture of botany, exploration, Abstract Art and Pop Art color theoryâthis activity never gets dull! Start by exploring outdoors and finish with indoor art.

What do you get when you combine science and fairies? Fairy scientists who make their own potion, of course! This activity promotes critical thinking skills as your child mixes, experiments, and creates their very own fairy potions.

Kids will enjoy this cool demonstration of Newton's Third Law and the conservation of linear momentum.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

Put an oatmeal box, a flashlight, and some construction paper together and you have the makings of an incredibly cool bedroom planetarium!

The objective of this science project is to investigate why NASA has been using aerogel for the Stardust Project for collecting gas and dust from comets.

Turn the common pastime of constructing paper airplanes into a lesson on the physics of aerodynamics and flight with this fun science activity.

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

In this experiment you simulate radioactive decay in order to gain an understanding of the basics of half-life.

Combine the science of physics with the fun of playing spy. Your young detective can make his own tiny looking glass. It's simple to make!

Travel back to the Jurassic age with this creative dinosaur activity that would make a great addition to any wall or fridge.

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

This project will explore whether test subjects, deprived of points of reference, will, in attempting to walk a straight course, walk in circles.

Create a mini plant habitat with your kid to help teach him what it takes to make an ecosystem work.