This tricky building block challenge asks your learner to think creatively. They will work on their divergent thinking skills as they try to fill up an index card perfectly with building bricks.

In this project children practice the scientific method while playing with puffy paint.

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

In this cool science fair project idea, kids conduct the ruler drop test on volunteers to determine whether reaction time can be improved with practice.

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

It's rhyme time! With this science fair project idea, your child will find out which words can be considered easy rhyming words, and why.

Make water and clay play a little more scientific with this hands-on experiment that teaches displacement and shows how an object's shape affects its buoyancy.

This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

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

Future engineers, unite! Discover how to keep a sandcastleâs bridge from falling into the moat.

How would you dry your wet clothes if your dryer didn't work? Find out with this fun experiment!

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

Spiders don't go to grocery stores or fast food chains to get their food -- they set up traps and wait for their food to come to them!

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

Learn about the microclimate of your backyard by tracking rainfall, temperature, and observed weather with hand drawn charts and graphs.

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

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.

This project determines what category of person is most likely to be ticklish.

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

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?

This experiment explores whether reading text on a computer screen or type on paper leads to better retention of the information read.

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