This science fair experiment idea's objective is to understand the general concept of an acid and a base.

In this activity, your child will be challenged to create a device that protects an egg when it is dropped from a height of about 10 feet.

In this activity, your learner will be challenged to create their own tic-tac-toe grid out of building blocks.

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

This science fair project idea explores how length affects the weight a bridge can hold.

Create a brush pile to help wintering wildlife stay warm and cozy through the winter.

The objective of this science fair project is to explore the relationship between acidic and basic compounds.

Have you ever noticed the way a dropped stone makes a fun pattern in a pond or lake? What's the science behind these splashy occurrences?

This science fair project idea investigates the difference in reaction times between boys and girls.

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

Engineers in training can get started with this simple wheel-and-axle construction activity.

This science fair project idea investigates if fats add to the flavor of food.

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.

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

This science fair project idea explores substances that cause a bubble to last longer.

This Valentine's Day, pair up science and crafting with this simple crystal formation project that's sure to bring a little love into your home.

How do organic materials become soil? This science experiment measures what materials biodegrade.

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

Make a backbone model to explore human anatomy and life science.

We all know that the Moon has different phases, but it can be hard to figure out why. Try this activity to see how the Moon's phases really work.

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

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.

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

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!

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

In this design challenge, your child will create a parachute for a small toy using typical household items.

Discover flight initiation distance as you play around in the park with this fun bird watching project!

This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!

What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.