In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

Test your friends to find out if you can replicate the placebo effect's incredible results.

With some cookie dough and ordinary household objects, let your kindergartener explore how fossil imprints are made.

In this fun experiment, learn about brand awareness and the influence of media on children by testing logo recognition in different age groups.

Devise list of randomly chosen words, test how many words volunteers can remember. Compare results of adults and children. Which have better memories?

Teach your child how butter is created by shaking up cream the old-fashioned way.

Making your own glass cleaner is easy, effective and inexpensive!

This free science fair project explores the "dirty" relationship between the presence of organic material in soil and water absorbency.

Take a look at forensic science with your child. She'll learn how to take a shoe impression, just like the detectives do!

This science fair project idea determines the probability of a coin landing heads or tails.

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

The goal of this science fair project is to evaluate the effect of heat on sound wave frequency.

Make stunning pendulum waves and learn the math behind the patterns generated with this cool and easy science project.

Science fair project that determines how your mirror image differs from your actual image and how virtual images are constructed.

Have you or your child ever heard that nursery rhyme and wondered just what curds and whey are anyway? Do this simple experiment together to find out!

This science fair project idea examines whether music has an effect on a person's ability to complete a simple task that requires concentration.

Learn to solve a crime scene investigation using an important forensics tool: oblique lighting.

Research different measurement systems, design your own new or improved system that can measure something difficult to measure with traditional systems.

This experiment evaluates if the temperature of the environment that you work in affects your ability to perform mental tasks.

Science fair project that tests the correlation between outdoor temperature or weather conditions and the number of visible stars at night.

This science fair project idea studies which brand of wintergreen candy produces the most sparks in the dark.

The objective of this science fair project is to determine whether drawing with the right side or the left side of your brain will produce a better picture.

Evaluate whether birth order influences personality.

Do you think heat can affect a plant's growth rate?

In this experiment you simulate radioactive decay in order to gain an understanding of the basics of half-life.

This middle school science fair project determines whether DNA is most easily extracted from under-ripe, ripe, or over-ripe strawberries.

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.

This fun, think-outside-the-box activity introduces kids to gravity and other basic scientific concepts as they construct an impressive marble run!

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

This fun science fair project idea helps students learn how acid rains are formed and explore how acid rain damages the environment.