Which public places harbor the most bacteria and germs? Test different environments to find out where the most bacteria live in this science project.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

This project tests the hypothesis that dark colors absorb more heat than light colors.

Here's an enjoyable at-home activity that gives your child step-by-step practice identifying the important parts of an article and organizing his ideas.

Okay, engaging in a graphing activity may sound ho-hum, but if you use fun data, it changes the picture entirely.

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

Teach your preschooler color recognition using this handy egg carton sorter. She will group objects by color and learn to recognize their names with this tool.

This project commemorates the milestone of completing the first 100 days of school, while giving your child a manipulative to practice counting to 100.

Math Facts Game: A mix of musical chairs and Twister meets math. Nipping multiplication problems in the bud was never this much fun!

Observe if dissolved aspirin will help plants grow healthier and faster in this science fair project idea.

Here's Twist 'N Turn: let your preschooler or pre-kindergartener be outside and active while learning about shapes, colors, directions, and word recognition.

Help your preschooler practice counting, matching, and learning colors with this fun game!

This science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.

Guessing is more than pure fun, it's also a key part of kindergarten math. Here's a fun way to bring estimation to the breakfast table.

Analyze competed scientific studies to determine the effectiveness of ancient remedies. Create a chart that illustrates the effectiveness of these treatments.

Will your liquid weigh less once you remove the fat from it? Find out in this science fair project idea.

This science fair project idea explores whether dry ice will cool a beverage faster than wet ice.

This hands-on activity gives your child an opportunity to apply various strategies to solve a problem and to check if his answer makes sense.

Learn about emulsification and bile's roles in digestion, and investigate how the digestive enzyme lipase breaks down lipids.

Invite your kindergartener to explore the bright new world of measurement by starting out with nonstandard (and tasty!) units, such as gummy bears or worms.

Making food sculptures boosts creativity, and just might help your picky eater branch out!

Try a 100th Day of School Scavenger Hunt with your preschooler, and send her on the search for objects of different colors!

Introduce your child to science with something they see everyday--their shadow!

Determine whether the relationship between a personâs armspan and height are genetic.

Free science fair project idea that examines air pollution in local environments. Particles are trapped by petroleum jelly on microscope slides.

In this project students learn about the golden ratio and investigate if it can be used to predict people's assessment of beauty in others.

Thousands of witches that come out to celebrate Halloween. Now, your child can make her very own self-standing witch.

This science fair project idea quantifies the effect of weather- in this case temperature and humidity- on musical instruments.

This science fair project idea determines what factors influence an individual's reaction time using a web-based timed reaction test.

Money is a difficult concept to grasp. Help your kid get the hang of it with this pocket change triple Venn diagram activity.