Study the impact of environment on seed germination among three materials: soil, paper towel, and cloth. Note when seeds germinate and how well they germinate

This project examines whether humans can intuitively grasp numeric values greater than three.

This science fair project idea sheds some "light" on which color of candles burn the longest.

Learn about the power of exponents. The objective of this science fair project is to explore and understand how exponents are used.

This project compares the strength of one, two, and three-ply toilet paper.

In this investigation, three different juices are tested to determine which juice contains the greatest amount of vitamin C.

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

This science fair project idea examines the actual cost of three household light bulbs by testing energy consumption.

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

How do crystals form? In this science fair project, students will use three different saturated solutions to see how different minerals form crystals over time.

The project compares three different methods of testing turbidity in water: the secchi disk, spectrophotometer, and turbidity test kit.

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

This project explores how and how much one family can reduce the amount of garbage they accumulate over a three month period.

Help your fifth grader trace your family's roots and interview all the living mothers to create a makeshift, 3-D family tree!

Store seeds under three different environmental conditions. Plant seeds in carefully marked groups, watch them grow. Compare results.

First grade science often covers solids, liquids, and gases. This silly science explores serious facts about the difference between all three.

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

Alive or not? This yeast experiment you can conduct with your little scientist explores the answer to this timeless question.

This easy project for little hands uses mushroom spores to make an imprint of the mushroom, and the result is very beautiful.

Create a three-dimensional X-ray of your child's hand in this simple modeling activity. All you need to get started are black paper and drinking straws

In this open-ended activity, students will be given a small quantity of three types of materials and asked to design a prototype for “something that will improve the school.”

Explore the craters, maria, and highlands on the surface of the Moon! In this fun science project you'll create a 3-D model of the moon using paper mache.

Wool can absorb 1/3 of its weight in water, while still keeping the body warm. She can test this theory by performing a scientific sock comparison!

Want to make Halloween truly eerie? Science to the rescue! These ghouly hands come alive with a little help from simple chemistry.

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.

Teach your little scientist about the amazing powers of gravity by comparing the falling speeds of two yummy fruits

Help your little one figure out the differences between the worlds of air, land and water, a huge step in understanding how our environment works.

Here's a science experiment that gives your kids a chance to see how fire needs oxygen to burn, with a little math and writing practice thrown in.

What is condensation? Little mad scientists will learn about condensation, states of matter, and air pressure by conducting this cool science experiment.