This science fair project idea explores whether people have an innate feel for the passing of time from a few seconds to 20 minutes.

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

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

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

Set your young chemist up for an afternoon of science-fueled magic with a deceptively simple activity starring baking soda and vinegar!

This project examines what types of objects burn and which burn faster and cleaner.

Create a soda bottle garden that defies gravity! This hanging terrarium is housed in a soda bottle and perfect for crafty kids with a growing green thumb.

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

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

In this fun project, use a memory game to test various age groups and determine whether aging directly affects short-term memory loss.

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

Want to help make studying the nervous system a little more fun? This thinking cap is a great way to learn external human brain anatomy.

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

With this hands-on activity, you'll show how fall colors are hidden in the leaf all year long!

Challenge your learner to design and build a city of their own in this creative engineering activity.

The objective of this science fair project is to test the growth rate of a plan in a crystal medium in comparison to traditional soil.

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

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

This experiment that explores water and air pressure will amaze your fifth grader as it appears that a single card is holding water in an upside-down glass.

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

Get your fifth grader involved in some earth science by helping her plan and create her very own rock collection.

Teach kids about a fun way they can remember this more efficiently- the power of mnemonics. Kids will be amazed.

Science fair project which uses coins flips to visually demonstrate the probability of an event and how to express it.

In this cool physics experiment, use double plane mirrors at various angles to learn about light reflection. Then, see if you can solve a puzzling problem!

Science fair project that determines whether mass and weight are the same or different.

Is horse manure a possible energy source in a crisis? Use calorimetry to find out how much energy horse manure can produce in this science fair project.

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.