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The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

Science fair project that tests the effects of diluted soap on the size of bubbles blown from the solution. Will dilution cause smaller bubbles?

Here's a science experiment that gives your kids a chance to see how fire needs oxygen to burn, with a little math and writing practice thrown in.

This experiment evaluates if a noisy environment makes it harder for test subjects to perform tasks that require hand-eye coordination.

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

Make some easy homemade yogurt with your young scientist, and see what a few 'live' bacteria can do in the right conditions!

This experiment explores whether caffeine improves athletic performance.

We're all familiar with the idea that some songs âget stuck in your head.â This experiment explores the validity of that claim.

Set off an a science adventure as you prepare a row of bee homes for your new visitors.

Determine how good we are at direct and indirect observation.

Science fair project that examines the biodiversity of ant populations in various locations.

Determine the efficiency of multi-tasking by comparing how long it takes students to complete different tasks. Collate data, complete Summary Chart.

The objective of this science project is to determine whether the brain first processes colors, shapes, or words when given conflicting messages.

Discover whether people can distinguish what a person looks like just by listening to their voice.

This project examines whether people's taste perception is influenced by what they see.

In this experiment we use Scotch Guard to make sand that resists water.

This science project examines the thermal properties of several major greenhouse gases.

In this experiment, you will find out how human error can cause faults in any science task. This includes experiments conducted by famous scientists also.

Try this activity with your child to explore what happens to rain (and the living things that need it) when it becomes polluted.

Is there more air particulate matter in an urban or rural environment? Test your knowledge with this science fair project.

Why does purple cheese look nasty? Because color plays a big part in how we perceive the taste of different foods. Are birds just like us in this respect?

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.

Here's an experiment that will have your child experimenting with cake ingredients to learn about the chemical reactions that happen when a cake's in the oven.

Check out this hot project idea to culture bacteria and determine if the claims about the anti-bacterial properties of curry and cinnamon are true.

This science fair project compares the allelopathic chemical produced by the Black Walnut tree to a commercial herbicide in stopping the growth of a shrub.

Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.

In this experiment two environments will be compared: a room with interior design that uses correct Feng Shui versus one with incorrect Feng Shui.

Save money by making compost! Use this science fair project idea to determine which composting methods best encourage decomposition of organic matter.