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How do organic materials become soil? This science experiment measures what materials biodegrade.

Your preschooler can learn how to siphon water with just two bottles and a plastic tube in this fun, educational science activity.

This science fair project idea studies past and current fads and trends.

Test of the effect of exercise on rote memory. Prepare a single list of 40 randomly chosen words. Have volunteers recall as many words as possible.

In this activity your child will create their very own marble maze!

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

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

Have your kid determine if a goldfish can be conditioned to expect food the same way Pavlov's dogs did with this fascinating science fair project.

Science fair project that explores the natural process of limestone formation.

This experiment will explore the possibility of creating an infinite object by hand.

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

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

This science project challenges students to study the salt content in tap water and learn about electrochemistry.

Find out whether matte or shiny nail polish lasts longer.

In this design challenge, your child will use building bricks to create a funny face. The activity instructions include question prompts thta can help guide your child through the creative process, and promote their problem-solving skills.

Build a magnetic linear accelerator using a ruler, neodymium magnets, and small metal balls in this fun science fair project exploring magnetic propulsion.

Science fair project which measures the shadow cast by a meter stick at various times in order to predict the circumference of the earth.

Multiple-choice test questions can be confusing. Here's a toolbox of tricks and strategies to help your teen become a multiple-choice master.

Study the impact of environment on seed germination among three materials: soil, paper towel, and cloth. Note when seeds germinate and how well they germinate

Science fair project that compares tree leaf size and shape based on the leaf's position in the tree. Is their is a noticeable difference between high and low?

What kind of fabric holds dye best? How can you improve a dyed fabric's colorfastness? In this colorful project, test colorfastness using mordants and bleach.

This science fair project teaches you about what makes persimmons so tart and how astringency can be removed by studying the effect of tannins on fruit.

This science fair project idea studies whether eating a hearty breakfast before and exam will get them better test scores.

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

Kids will love making sugar crystals in this sugar crystal science fair project which teaches important chemistry concepts like saturation and solubility.

Learn about the microclimate of your backyard by tracking rainfall, temperature, and observed weather with hand drawn charts and graphs.

Store seeds under three different environmental conditions. Plant seeds in carefully marked groups, watch them grow. Compare results.

This science fair project idea focuses on the production of oxygen by plants during the photosynthesis process.

This science fair experiment examines the relationship between gender, age, and smiling.

This science fair project idea provide quantitative data about how well the use of ASL ( American Sign Language) works in communicating with babies.