Investigate the advantages of the use of ceramics in engines such as the tiles used in Space Shuttle. Use iron filings and magnets.

The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

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

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!

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

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

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

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

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.

Do you think heat can affect a plant's growth rate?

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

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.

Making candles from old candles is easy. Recycle old candle stubs to make a "new" candle, and teach your child about recycling at the same time!

Use playing cards to learn about temperature as well as positive and negative integers in this fourth grade math game.

This potato cannon activity teaches your middle schooler about the principle of Boyle's Law. Make a potato cannon and have a blast learning about science.

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

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

This fun science fair project idea explains what a circadian rhythm is and explores the types of biological activities that follow a 24 hour cycle in mammals.

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

This science fair project investigates how temperature of a room affects the burn rate of a candle.

Determine which environment keeps an ice cube frozen for the longest duration. Inspect and record your observations when cubes melt.

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

Study the effects of wind and temperature on evaporation. Place wet sponges in different environments, check at regular intervals, track time required to dry.

In this science fair project, we learn how air molecules move as a result of density, convection, and air currents.