Your preschooler will engage their senses by making a scented pumpkin to decorate your house.

Determine the growth rates of different types of human hair. Ask volunteers to not cut their hair until the end of experiment. Measure hair length.

Start your toy engines -- this is going to be a fast and friction-filled race!

Learn the basic structure of a DNA strand, which is the double helix, how genes form together, and the resemblance DNA has to a twisted ladder. Create a model.

This science fair project idea raises awareness of a real ecological issue.

This science fair project idea demonstrates the process of land erosion.

This project will explore whether test subjects, deprived of points of reference, will, in attempting to walk a straight course, walk in circles.

Find out which type of sponge holds the most water.

The objective of this experiment is to evaluate whether funny advertisements are more or less effective than serious advertisements.

Does electricity move better through thick wires or thin ones? kids will conduct this classic electricity experiment for this science fair project.

This activity provides a solution to all those leaves on your doorstep, while also giving your child a fun science lesson.

Is our water polluted? Help your young scientist understand the importance of taking care of the environment with this simple experiment.

Check out this cool science fair idea on why hard fruits become soft and learn how to compare the sugar content between ripe and unripe fruits.

How powerful is the reaction between baking soda and vinegar? Find out here!

Science fair project that evaluates how well clothing fabrics block UV radiation by examining the properties of different fabrics.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

In this science fair project on the relationship between distance and time, kids explore the behavior of gravitational acceleration through direct observation.

The goal of this project is to create an exciting topographical map out of dough.

Research fruits and their ripening stages, follow and document the different stages. Analyze what causes fruit to continue ripening after being picked.

This science fair project idea examines which type of insulation holds in the most heat.

Learn about lateral earthquake motion and its effect on high rise buildings in this simple 4th grade earth science experiment.

Want to see a great example of Newton's first law? Kids will learn about basic physics with this fun, ballistic experiment.

Help your child make a beautiful homemade sandcastle that will last!

Demonstrate Newton's laws of motion by examining the relationship between mass, force, and acceleration during free-fall.

This science fair project idea explores how water and ice can change the form of rocks.

Discover the force of water! This article provides step-by-step instructions for creating your own science experiment.

Your kindergartener will make prints of his favorite fruits and vegetables and learn how to organize and assemble his very own book.

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