How does dishwashing liquid work? Kids discover the chemical mechanism behind cleansing power in this easy science fair project idea.

Create your own cloud with an activity that will explain how important concepts such as evaporation, condensation, and precipitation work.

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

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

What's the quickest way to separate salt and pepper? Let static electricity do the work! Your child will be fascinated by this simple experiment.

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

In this activity, your child will be challenged to make a tower using paper cups.

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

Learn about this simple machine and make a pulley of your own to use for fun science trials.

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

In this activity your child will create their very own marble maze!

Using scherenschnitte, your science-savvy second grader will be able to create and display each part of a vegetable!

Perk up your front porch with this hanging vase craft, perfect for spring and for getting kids outdoors!

In this exciting and empowering challenge, your child will construct a bridge using marshmallows and toothpicks!

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

Reinforce your child’s understanding of the alphabet by helping them construct all of the letters using pipe cleaners.

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

Transform your uncomfortable wooden shoes into charming mini planters!

In this activity, your child will be asked to create a boat that can successfully float while holding 25 pennies.

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

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

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

Is it solid or liquid? Create oobleck and witness the amazingly weird oscillation between the two!

This classic children's game demonstrates how sound travels through air vs. through a solid.