This science fair project idea investigates the relationship between memory and age.

In this science fair project, students test how objects float and sink in liquids of different densities.

Plants need water to grow. In this project we learn how plants transport water from their roots to their leaves

Crystals are a very special structure. In this third grade activity, your child will learn how to grow salt crystals.

Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

Teach your child about recycling and gardening as she re-uses an empty plastic milk gallon jug to craft a swan-shaped plant container!

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

This classic children's game demonstrates how sound travels through air vs. through a solid.

Kids use applied math to build and test a parabolic mirror solar hot dog cooker in this cool engineering science fair project idea for middle school.

What happens when colored beams of light mix? You might be surprised.

Explore this fun science fair project idea to investigate different microclimates in and around your home and their effects on the plant and animal life.

In this science experiment, do tensile strength test on fishing line, a strand of hair, a rubber band, and any other materials you're curious about!

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

Checkerboard play challenges students to use spatial reasoning and computational thinking.

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

In this science fair project, students create their own miniature salt flats at home.

In this cool robotics project, construct a motorized robot with a sensor and put it through a maze test to find the number of errors it makes along the way.

This science fair project idea tests for the existence of an ability known as remote viewing.

The objective of this science fair project is to experiment with balancing everyday objects and observing the the effects of gravity on materials.

This science fair project idea investigates whether air has mass and weight.

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

Beetles come in many shapes and colors. Here's how your second grade child can create his own beetles to paint and play with!

Construct a model of radioactive decay. Learn more about radioactive decay by modeling the process using coin flips.

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

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.

Thermometers are how we measure temperature, and we've all heard the terms "centigrade" and "Fahrenheit" tossed around, but what do they really mean?

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 animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

In this project, you will observe and record changes in sunspots over two weeks.

This science fair project idea determines which flower lasts the longest.