Make your own helicopter using a paper clip and a sheet of paper. Hold the spinner up in the air, let it go, and watch it spin gracefully to the ground.

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

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

Has your kid noticed how much bigger the moon looks when it's low in the sky? Here's an activity you can do to show them that it's just an optical illusion.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

Hone your child's skills of observation and take a look at forensic science for an interesting afternoon of exploration and detective work!

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!

Looking for an enjoyable evening activity you can do with your kids? Study the stars: help them learn about constellations by making one of their own.

This surprisingly good glue recipe comes from common kitchen items.

Help your fifth grader execute this experiment involving a lit candle (submerged in water!) to show him the wonders of heat energy transference.

Here's an interesting activity that will enable your child to make his own magnifier out of a drop of water

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

What causes sound? Here's a simple science experiment that adds a visual element to the science of sound to help kids better understand this tricky concept.

The pinwheel is a simple toy that has been around for years and uses the wonders of the wind to spin it and delight kids of all ages!

Learn to solve a crime scene investigation using an important forensics tool: oblique lighting.

When you see those sunscreen "protection levels," what does that really mean? Try this experiment to find out.

Show your kids the power of baking powder by conducting a simple experiment. Make four batches of cornbread, all identical except for one thing: baking powder!

Help your curious third grader construct a dazzling spinning wheel that will teach him about the science behind colors while providing some silly entertainment!

Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?

Encourage your child to think outside the bathtub by making her very own handmade soaps! Perfect as a present, a decoration, or just to pamper herself.

Inspire your child to put on her engineer hat for the day, as she builds her very own, double-decker bridge.

Your kid can learn about the process of making frozen yogurt and enjoy a homemade, flavorful dessert. Experiment with this fun, chilly food!

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

Get your sense of humor ready for this fun science experiment that demonstrates the fundamental physics of air pressure.

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

Make a DIY golf putter and design your own golf putting course in this 2nd-3rd grade arts and crafts/game activity.