This science fair project idea measures the growth of bread dough and finds out how long it takes for the dough to stop rising.

This conservation of energy demonstration shows why the first hill is the highest on a roller coaster. Learn more about potential and kinetic energy!

In this cool experiment, learn how to find specific gravity of minerals using liquids of different densities to see which substances and items sink and float.

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.

Science fair project that explains and demonstrates the parallax principle.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

Make a lei and bring a touch of the tropical lifestyle into your home!

Let your fabulous crafter use their favorite flowers, fruits and herbs to whip up a delicious perfume that they can proudly present to a friend or a loved one.

Wreath ornaments decorate your Christmas tree and act as a fun sensory craft for preschoolers. Make wreath ornaments with your child this holiday season.

Many ancient cultures used the rising or setting sun to create calendars. Observe the setting sun once a week to come up with your own solar calendar!

Help your child understand surface tension by showing them how they can create a "skin" on top of water.

In this experiment, your middle schooler will chart the effects of oil on a feather in order to grasp the tragic effects of oil spills on wildlife.

Compare the amount of ozone in various locations with this science fair project that will have your kid create her own ozone strips!

You don't need to head to the Arctic to experiment with life in an igloo. Learners can build their own ice igloo at home from water and empty milk containers.

Brighten up your home with this fun activity! Make a summer sun print and teach your child the art of easy print making.

Determine the maximum distance traveled by projectiles launched at an angle. Use some cool math to figure out at which angle your projectile will go farthest.

The purpose of this science project is to determine which stimulus, gravity or water, will cause the greatest growth response in a plant.

Help your child create a working lung model that fills with air just like the lungs inside of his own chest when he breathes.

This science fair project idea explores if an LED light can be powered by vegetables and/or fruits.

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

Soil is made up of different layers. How far down do you need to dig to find the soil horizon, or the place where bits of leaves and branches become soil?

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

Illustrate the idea of light refraction with this exciting and mystifying experiment.

Can a horse lead itself to the carrot? Train your horse with carrots and boxes and test horse memory in this fun zoology science fair project.

These flying potato poppers make a cool sound, create a celebratory mood, and they can teach your child about the power of air pressure.

Check out this cool science fair project idea to explore non-chemical means of preserving fruits by using thermotherapy.

While your cells are much too small to see without a microscope, you can create the look of a cell in your very own home with just an egg and vinegar!

Discover whether cheap saline solution bottle cleans and disinfects just as well as more expensive kinds formulated with different ingredients.

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

Try this chemistry experiment with your curious kid and get some "shocking" results!