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

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.”

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.

Create uphill flow of water by using a siphon. Create vacuum by suctioning one end of tube, and submerge it under water. Watch the direction the water travels.

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

Determine the effect of homework on academic performance. Collect grade info at the end of a semester, determine correlation between grades, amount of homework

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

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.

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

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

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

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

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.

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.

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

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

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!

Science fair project that determines which materials cause the most friction by sliding blocks of wood down a ramp.

This project determines whether hands-on practice, mental practice, or no practice leads to better shooting of free-throws.

Inspire your child to put on her engineer hat for the day, as she builds her very own, double-decker bridge.

This science fair project idea explores how length affects the weight a bridge can hold.

This science fair project idea determines if the temperature of rubber effects how high it bounces.

This science fair project idea demonstrates how our fingers prune when in water.

Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.

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?

Science isn't ho hum anymore when it involves building catapults to teach your fifth grader about projectile motion.