This science fair project idea lets you build your own wind tunnel and tests different models of paper airplane.

Do thick liquids flow faster than thin liquids? Examine water and syrup's viscosity and inertia to learn about the Reynolds Number, laminar and turbulent flow.

Find out whether optical mice are useful on all surfaces or if there are drawbacks to this supposedly superior solution to the traditional roller-ball mouse.

This science fair project determines whether most people will notice that a game of chance is very slightly rigged.

An home science experiment for older students that teaches about the science behind heat.

Science fair project determines relationship between number and variety of insects and spiders by collecting and counting invertebrates in a ecosystem.

Find out whether cast iron or regular teflon pans heat up faster and also retain their heat longer.

This science fair project idea is develops new or improved paper making techniques and encourages recycling.

Free science fair project idea that measures change in flexibility with age, using a variety of flexibility tests like Sit & Reach.

Determine how different measurements of the same object might yield different values. Provide as many reasons that you can think of.

In this experiment, the weight of aluminum cans will be compared.

This experiment researches if you gave different amounts of food to mosquito larvae would they grow faster or slower

This science fair project idea explores discover whether there are any patterns or trends in the memories between different genders.

Can you dig it? This science experiment isn't for kids who like to keep their hands clean.

Construct batteries that make electricity from fruits with this fun science fair project.

Grow these wheatgrass and alfalfa friends and watch their hair spring up in just a couple days!

Celebrate April Fools' Day with a science prank that is sure to amuse...and educate too!

Research Earthship buildings. Draft a unique architectural design that repurposes used, discarded radial tires. Build scale model of structure.

Demonstrate how tracks are formed by pressing your hand into a cornmeal mixture, then reverse the process and make prints of the track.

Bring the fun of gardening indoors! By stuffing a simple pair of pantyhose with a few grass seeds on top, your child can grow her very own plant pet.

If your fourth grader is obsessed with all things glow-in-the-dark, then here's an activity that will really light up her imagination!

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

Research camouflage products and techniques, test quality by timing volunteers. Calculate the average length of time to recognize the subject.

This science fair project idea explores discover whether mixing solutions of equal distances from neutral pH (7) will create a solution close to pH 7.

This science fair project idea examines readersâ expectations in regard to literature.

Investigate which substances are most effective at removing salt from water.

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!

Science fair project that determines the effect of concentrated mental effort on physical performance levels.

This project uses toy cars to determine how friction and gravity affect cars and braking.

The science project fair idea explores the interaction between your nose, mouth, and brain when tasting a new food or drink.