Use reusable, recyclable materials--along with a dose of imagination--to build a castle with first grade geometrical forms.

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

This experiment explores how microwave radiation affects fungi, bacteria, and plant life.

Create groups of volunteers based on frequency of playing video games. Compare driving records. Analyze data, interpret findings.

In this simple and social activity, children use size comparison skills to find objects in nature that are bigger, smaller, longer, and shorter.

Are you ready to pilot your own airplane? Well, then take to the skies with this high-flying project!

Administer IQ tests to volunteers. have one group practice typical IQ test problems. Then compare results of the two groups.

In this exciting design challenge, your child will use design thinking skills to create a mixture that can inflate a balloon.

Get a cool science fair project idea for middle schoolers on the effect of adding sugar to the growth of green plants.

Find out whether putting something on top of a plant will inhibit its growth.

Determine the effect of reading aloud on memory skills. Prepare a list of randomly chosen words, ask volunteers to recall as many as possible from the list.

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

Explore convex and concave objects and how they reflect light.

Jazz up your patio or backyard with hip and quirky planters made from simple Mason jars.

This science fair project idea studies which kind of rock (sedimentary, igneous, or metamorphic) is most damaged by frozen water.

This science project examines the effectiveness of various types of laundry detergents on stains trapped on a white handkerchief.

You don't need to head to the Arctic to experiment with life in an igloo. Learners can build their own ice igloo at home from water and empty milk containers.

Test the effects of left and right handedness on writing speed and penmanship. Volunteers hand-copy the same paragraph of text, which samples look neater?

Research history of programming language. Design a new or improved programming language. Create a display that illustrates the features and improvements.

In this science fair experiment, middle school students evaluate whether tone of voice can influence our ability to remember a list of everyday objects.

Make a planter full of delicious seasonings and classic grilling vegetables, great for a Fatherâs Day gift or a fun start-of-summer outdoor activity.