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Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

Lead your first grader on a nature walk ... with a scavenger hunt-style twist! They'll try to capture photos that correspond to paint chip colors.

This science fair project idea explores substances that cause a bubble to last longer.

In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.

How do organic materials become soil? This science experiment measures what materials biodegrade.

Are your taste buds up for the challenge? Put tongues to the test with this science fair project that examines who enjoys sour flavors more, adults or kids?

The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.

This science fair project idea determines if the color of light affects the growth of plants.

In this science experiment, observe convection currents forming and learn about how heat energy moves in liquids from hot to cooler areas through convection.

Want to boost math and science learning? Take a bug expedition and give your first grader practice observing and charting what they see.

Science fair project idea examines validity of mood ring predictions. Analyze accuracy of results, consider the impact of temperature

Total alkalinity and pH personal care products are controlled to prevent skin irritation. Learn more about basic and acidic substances in this science project.

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

Help your kindergarten scientist predict and observe as she explores the science of smell...and have a great time doing it, too.

Make a backbone model to explore human anatomy and life science.

Help your kids fall in love with nature by making a simple clay bird bath. Set it up in your yard and watch the animals venture in for a sip of water.

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

In this experiment, young ecologists will learn about a type of edge effect: how trees and plants at the edge of a forest can act as a weed filter.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

When you see those sunscreen "protection levels," what does that really mean? Try this experiment to find out.

The objective of this science fair project is to set up a compost bin to convert food scraps and organic waste.

In this fun experiment, learn about brand awareness and the influence of media on children by testing logo recognition in different age groups.

Play Rock Tic-Tac-Toe, the perfect outdoor game for all ages. Help your child develop thinking skills and get away from the TV!

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.