This experiment explores the most common colors that appear among a sample of crossbred guppies.

Build a bird feeder science craft that brings birds to your yard, and a smile to the whole family's face.

Investigate how to keep your fruit fresh for longer. The purpose of this science experiment it to determine which kind of bag best preserves fruit.

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

Demonstrate how tracks are formed by pressing your hand into a cornmeal mixture, then reverse the process and make prints of the track.

This science fair project idea discovers whether plants grow best in chemical fertilizer, organic fertilizer, or with no fertilizer at all.

In this experiment you will evaluate whether praise improves athletic performance.

Use sticks and stones to create create an outdoor version of tic-tac-toe!

This experiment evaluates if people of a specific gender or age more likely have an elevated number of taste buds, allowing them to taste what others cannot.

This science fair project idea determines how your body responds to allergies.

Make a seed bomb and let your junior guerilla gardener spread flowers far and wide.

The objective of this science fair project is to investigate salt water density.

This science fair project idea investigates whether rocks containing geodes can be determined from the outside.

Does 100% Fruit Juice have more Vitamin C than juice with artificial ingredients? Find out in this science fair project idea!

This experiment evaluates whether the phenomenon of "choice blindness" occurs more often with men or women.

This science fair project demonstrates the principles of reflection through simple experiments involving mirrors and light.

Test your skills as a weather forecaster, and learn some science terms on the way!

The project researches how lubricants affect the mechanical advantage of a pulley.

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!

Before digital cameras, before Polaroids, there was the original pinhole camera. Build a pinhole camera and see what true vintage photography looks like!

Kids conduct a cool balloon rocket experiment in this fun science fair project idea. Does a greater volume of air mean a greater distance traveled?

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

Discover flight initiation distance as you play around in the park with this fun bird watching project!

Help your child plant a "tea garden": a garden made of herbs for making teas.

Science fair project in which you will create your electricity by making a homemade battery using salt water, a nail, and a copper wire.

This experiment uses personality assessments to evaluate if certain personality traits are more common in people with unusual first names.

Here's a first grade ladybug game that explores how air can move solid objects, and adds some measurement practice, too. Play, learn, and enjoy!

Learn how to relight a candle by lighting the vaporized wax in the smoke, and test how various kind of wax and candle brands relight differently.

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

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.