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.

Observe trends in the properties of writing materials over past 5000 years and extrapolate to future time. Prepare a table that compares writing material.

Learn whether writing things down really makes things easier to remember.

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

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

This activity allows your kindergartener to translate what they observe into a beautiful poem.

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

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.

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.

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.

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

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.

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

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.

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

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!

Get your child outside to observe the clouds, and get a fun exercise in science, writing, and arts and crafts! Here's how.

Make a kindergarten "discovery table" that reinforces both science and writing skills. Here's how:

Here's a great early reading and science activity for curious children. Learn how to plant your child's name in seeds for a growing writing activity!

Combine your child's natural curiosity with his developing classification and writing skills by helping him create a backyard field guide.

Here's a pressed leaf card project that puts science and writing together for your second grader.

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.