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In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

This simple experiment serves as an introduction to the greenhouse effect.

Using simple materials found around your home, you can reinforce the static electricity concept by helping your child build a simple device with zapping power!

Show your child how to concoct a simple duo of household ingredients that changes color as acids and bases are added!

It's food. It's Thanksgiving tradition. And guess what: Cranberry Sauce is also science! Try our simple recipe/experiment.

This science fair project demonstrates the principles of reflection through simple experiments involving mirrors and light.

A simple science experiment exploring the physics of water pressure that's been amazing people since Medieval times.

This science fair project idea attempts to train a worm to complete a simple maze in order to find out if worms can learn and remember.

Kids conduct a simple birdseed experiment to figure out what kinds of birds live nearby in this fun science activity.

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

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

April showers may bring May flowers, but your child can preserve the beauty of spring's bounty all year long with this simple craft project!

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 activity your child will make a coiling snake out of simple household materials, and also find out why they coil.

Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.

Conduct a simple science experiment to see if flowers from your garden pass the acid-base indicator test with this exciting chemistry activity.

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

In this windmill model science project, you will build a windmill to learn about wheel-and-axle machines and how these simple machines are used to do work.

Learn how to make marbleized paper with simple everyday ingredients in this fun activity! Your child will learn about oil and water while doing this project.

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

Kids learn about potential energy, and mechanical energy, and how to make power from water with one of our favorite renewable energy projects for kids.

Find out whether a longer airplane will fly farther or a wider paper airplane.

Does electricity move better through thick wires or thin ones? kids will conduct this classic electricity experiment for this science fair project.

This science fair project idea identifies trees using a dichotomous key.

In this hands-on design challenge your child will make their very own Rube Goldberg Machine.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

Science fair project which will teach you more about the foods that you eat, and learn which ones are healthier choices.

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

Learn the basic structure of a DNA strand, which is the double helix, how genes form together, and the resemblance DNA has to a twisted ladder. Create a model.