In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

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

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

Are you ready to be a detective for science? Then get out your magnifying glass and start studying fingerprints!

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

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

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

Learn about this simple machine and make a pulley of your own to use for fun science trials.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

This science fair project idea investigates which objects float and sink in honey, water, and oil.

Science fair project that examines condensation and the conditions needed in order for dew to form.

Test your friends to find out if you can replicate the placebo effect's incredible results.

This science fair project idea investigates if fats add to the flavor of food.

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

In this science fair project, students use the streak test to tell minerals apart from each other.

Science fair project that develops latent fingerprints on a non-porous objects by converting superglue from a solid state to a gaseous state.

In this project children practice the scientific method while playing with puffy paint.

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.

Can a horse lead itself to the carrot? Train your horse with carrots and boxes and test horse memory in this fun zoology science fair project.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.