This experiment challenges students to forecast the weather based on the surrounding areas' weather.

This science fair project idea examines the distance a person travels on an average day and to relate that to an understanding of the size of the Earth.

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

What makes your shadow dance around all day? Let's play detective and find out why that sneaky shadow never stays in one place for long.

examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

Find out whether packaged seeds actually do expire in this new science fair project idea.

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

In this science fair project, kids measure how weather conditions affect how fast a puddle evaporates.

In this fun science experiment, kids will determine the best method for ripening avocados and discover the cool chemical reaction that makes this possible.

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.

In this science fair project, students make their own rain gauge to measure rainfall.

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.

This science fair project idea investigates whether plants can survive being frozen.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

Does skin thickness really decrease fruit spoilage? Find out in this science fair project idea!

This science fair project idea explores whether talking to a plant will help it grow.

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

Does putting soapy water on plants help or hinder plant growth? Kids learn about greywater and how it affects plant growth in this cool science fair project.

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

Science fair project which determines whether plants are able to get enough nutrients from different types of garbage.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

This science fair project idea explores whether color affects a person's emotional state.

The objective of this science project is to determine the length of time for different seeds to germinate.

This biodiversity project examines the biodiversity in your own backyard.

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

In this science project, young children observe, record, and create collections of colors in their world and increase their powers of observation.