Science fair project the demonstrates Newton's Third Law using a milk carton filled with water.

Want to make Halloween truly eerie? Science to the rescue! These ghouly hands come alive with a little help from simple chemistry.

Children combine an acid and an alkaline substance to simulate a volcano eruption in this fun experiment.

This taste buds science experiment demonstrates how strongly our sense of smell controls what we taste.

Chemistry is a blast with this backyard bomb made from a sandwich bag. All you need are ingredients from the pantry to create a satisfying, and safe, explosion.

This project examines Newton's First and Second Laws of Motion with a bicycle and water balloons.

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

Explore solids and liquids with your young scientist by making gluep, a goopy substance that can behave like both a solid and a liquid!

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 kindergarten scientist discover relative size, density, and buoyancy with this fun, pumpkin science project!

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

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

This science fair project idea explores whether talking to a plant will help it grow.

How do mirrors work? What is light, and how does it travel? Explore light and reflection with your preschooler with these simple hands-on experiments.

This science fair project idea explores the relationship between oil and water in terms of density as well as hydrophilic/hydrophobic compounds.

The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

This awesome diffraction grating experiment puts high school students' applied math skills to the test by having them calculate the wavelength of laser light.

Sink or swim? Calculate the density of various fruits and vegetables using water and a kitchen scale.

Here's a classic celery science experiment that uses celery and food coloring to demonstrate how plants absorb water.

This science activity will help your student explore the changes that occur to transform an egg from raw to soft to hard-boiled.

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

This simple "how to make a water wheel" activity makes physics come alive for your child by demonstrating how different kinds of energy work.

Introduce your child to science with something they see everyday--their shadow!

Based on the concept of water's "freezing point," this activity entails the lowering of water's freezing point to chill ice cream!

How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!

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

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

What happens when light hits a hard surface? Find out by conducting a simple light reflection experiment with your preschooler.

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

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.