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

Make environmentally friendly, chemical-free toothpaste using one of the most common, inexpensive pantry staples in the American kitchen: baking soda.

Which do you prefer: real or artificial? Try this sweet little taste experiment to help your kids develop a better awareness of the food they consume.

This science fair project examines discover whether different formations of deodorant works better for certain skin types.

This science fair project idea explores if people with cool skin tones prefer cool colors and people with warm skin tones prefer warm colors.

This science fair project idea discovers the average time it takes for a person to remember something completely.

Look at people's face shape. Do you think their face shape affects your perception of kindness? Find out more in this science fair project idea!

This science project allows students to study the psychology of happiness.

This science fair project on testing water hardness is a great introduction to practical chemistry. Test and learn the difference between hard and soft water.

Explore whether pianists have the tendency to type faster than non-pianists.

This science fair project idea determines whether the older population prefers darker, duller colors rather than bright and lush colors.

This science fair project teaches students the differences between fruits and vegetables.

Research long-term effects and draft a questionnaire about frequency of marijuana use and average annual income. Interpret findings in a detailed report

Science fair project which will teach you more about the foods that you eat, and learn which ones are healthier choices.

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

Test the placebo effect in different groups of people.

Do lefties just write different or are their brains different? This science project has students explore what it means to be left handed.

Culverts transport seeds away from their original location to different places. This science project examines the effect of culverts on plant growth in streams.

Evaluate whether people can raise the temperature of their finger using the power of their thoughts.

Can you stain teeth with tea, coffee, or coke? Explore how in this science fair project idea.

Get active at home by pretending to be different animals! Use this fun and engaging activity to move your body, get silly, and practice gross motor skills.

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

Take this "paper plate snack test" with your child for a hands-on lesson in making healthier choices to teach your child about what's in his food.

Determine if âdouble dippingâ chips really spreads more germs than dipping only once per chip.

This science project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.

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?

This science project has students study the idea of human beauty.

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

This wassail recipe gets your child to concoct a sweet and tangy spiced cider. Celebrate the season with this wassail recipe and a few Christmas carols.

This Labor Day, help your child explore various occupations by discussing the tools workers use on a daily basis at their jobs.