This project concerns activity happening millions of miles away, on the sun.

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.

Science fair project that determines how UV radiation emitted by the sun varies depending on the time of day, using a handheld UV detector

This experiment works due to a simple principle: plants need light. Build a shoebox maze and watch the plant work though the obstacle course, searching for sun.

What direction should solar panels face? It's not the direction you might think! This free and enlightening science fair project helps kids discover the answer.

A great science fair project on solar oven design that helps kids learn about solar power and solar heating.

Compare air temperature with the infrared temperature from a reflecting surface at different times of the day, in shade and in sunlight.

Why do plants wilt? Kids will learn to think critically about what environmental factors affect plants, and what plants need to survive.

This science fair project idea researches how your choice of clothing affect how hot or cool you feel during the day.

In this activity, you child will learn about how heat changes food. On the next sunny day, head outdoors to make a treat in an outside oven! Here's how:

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

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

The objective of this project is to examine the ways in which a passive solar house may contribute to conservation of energy.

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

The objective of this science project is to determine the relationship between carbon dioxide gas and the temperature of the atmosphere.

Bake some cookies with an oven that collects sunlight and traps the shorter wavelengths (heat!).

Science fair project that measure winds speed, temperature, and time of day in order to determine the origins of the wind.

Learn about emulsification and bile's roles in digestion, and investigate how the digestive enzyme lipase breaks down lipids.

Free science fair project idea that examines air pollution in local environments. Particles are trapped by petroleum jelly on microscope slides.

Kids will learn about insulation, heat conduction, and the economic benefits of energy efficient windows in this cool science fair project.

Try this fun garden graphing project with your kindergartener this summer to give him a leg up in math and science while spending some valuable time outdoors!

Construct calorimeter and determine the caloric value of a sample of foods by change in temperature for each of the foods.

This simple experiment serves as an introduction to the greenhouse effect.

Plants help keep a house cool! This article includes step-by-step instructions for completing this fun and interesting science experiment.

This science fair project idea deals with the qualities of shade on a sunny day.

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.

What is the hydrologic cycle and how does it work? Check out this fun and easy science project where you will model and learn about Earth's water cycle!

This science fair project will help learners determine whether algae can be made to grow by feeding it supplementary carbon dioxide.

This science fair project idea determines if pancreatic lipase can break down lipids on its own or does it require the assistance of digestive bile salt.