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

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

In this fun activity, your child will create their very own solar oven to bake s'mores!

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

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

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

Ever wonder why refrigerator lights turn off when you close the door? Does the darkness prevent food from spoiling? This experiment, determines just that.

Incorporate some math and science thinking into your annual fall fun with this pumpkin investigation activity! Your child will have a blast investigating various ways of measuring pumpkins, making estimates, taking measurements, and recording their findin

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.

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

Your kid will delight in creating an extraterrestrial vehicle from goods found around the house. There's no telling where her imagination will go!

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

Help your child create a working lung model that fills with air just like the lungs inside of his own chest when he breathes.

This science fair project idea examines whether boys and girls differ in reflexes.

In this cool science fair project idea, kids conduct the ruler drop test on volunteers to determine whether reaction time can be improved with practice.

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!

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

Explore how sound waves are reflected and absorbed by producing echoes. Analyze which locations produce echoes.

What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.

This science fair project idea explores whether it is easier to balance on a narrow ledge or on a rope.

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

Excite your fourth grader by recreating ancient Viking myths. This miniature longboat will explore the principle of water molecules expanding when heated.

This science fair project idea creates a sedimentary rock and to investigate what takes place during the rock cycle.

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

Explore the chemistry of latex polymers with this outrageous, hilarious science activity.

Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

These flying potato poppers make a cool sound, create a celebratory mood, and they can teach your child about the power of air pressure.

Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?