Test products which claim to reduce wrinkles, and determine which is the most effective. Test effectiveness over three weeks, using a sample of volunteers.

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

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

In this project, you will observe and record changes in sunspots over two weeks.

Science fair project that studies how the brain transforms man-made symbols into meaningful concepts.

This science fair project idea determines an average personâs ability to use their anaerobic power system over a period of 2 weeks.

This science fair project idea studies how talking on a cell phone affect driving?

This science fair project idea studies whether a religious sleeping schedule relates to a higher IQ.

Want to help make studying the nervous system a little more fun? This thinking cap is a great way to learn external human brain anatomy.

Here's a math, science, and social studies activity: help your kindergartener become a "coin archaeologist" by examining how different coins look and feel.

This science fair project idea studies which kind of rock (sedimentary, igneous, or metamorphic) is most damaged by frozen water.

This experiment will determine how different kinds of light affects the strength of bakerâs yeast.

This experiment evaluates if personality influences whether a person prefers dogs or cats.

Free science fair project idea examining how different types of water affect plant germination and growth.

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.

The objective of this science fair project is to determine whether there are gender differences when boys and girls view optical illusions.

This interactive project invites science fair-goers to participate in examination and recording to demonstrate the importance of firsthand observation.

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

Experiment with buoyancy to learn how a submarine rises and sinks in this classic science experiment.

This experiment explores how microwave radiation affects fungi, bacteria, and plant life.

Here's a science and nature activity to help your kindergartener get outdoors and learn about the structure of leaves.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

The goal of this middle school science fair project is to examine the effect of caffeine on plant growth.

Help your kindergartener expand social studies and science work while creating this lovely bag clip for the holidays.