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.

Thermometers are how we measure temperature, and we've all heard the terms "centigrade" and "Fahrenheit" tossed around, but what do they really mean?

The thermometer outside is dip, dip, dipping! What kind of clothes will keep you warmest this winter? This project determines which materials insulate best.

This fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.

Have fun with bubbles and find out why there are bubbles in your tap water in this cool science fair project idea.

This science fair project explores how salt and sugar affect the melting rate of ice in water.

In this science fair project, students will use methylene blue to study the presence of aerobic bacteria in milk.

Discover if temperature settings in a fridge make a drastic difference in terms of bacterial growth.

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

This experiment will evaluate bacterial content on toothbrushes before and after different cleaning methods to determine which method of disinfecting is best.

The objective of this science fair project is to examine the cleanliness of salad preparation techniques.

Science fair project that tests the correlation between outdoor temperature or weather conditions and the number of visible stars at night.

This project explores what happens to a rubber band when it is heated and cooled.

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

This science fair project determines what effect substances have on ice, and which of these products most effectively melts ice.

This science fair project idea determines what factors influence an individual's reaction time using a web-based timed reaction test.

Science fair project that examines how yeast grows, and which conditions allow for optimal growth. What types of nutrients does yeast prefer?

A food groups plate shows your child what category her foods belong in. Make a food groups plate with your child before dinnertime.

Fudge is one of very few desserts people make at home that is actually crystalline. What happens when the fudge crystallizes at different temperatures?

What is the coldest temperature possible? In this cool experiment, you'll calculate absolute zero by extrapolating data on the temperature and volume of 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.

Chlorine and chloramine are added to our tap water to kill harmful microorganisms. What is the best way to filter these disinfectants in your drinking water?

Teach your child what a sugar plum is with this easy recipe that gets your child to chop, mix, and roll his way to a delicious treat.

This science fair project teaches you about what makes persimmons so tart and how astringency can be removed by studying the effect of tannins on fruit.

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!

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

The purpose of this science fair project is to investigate whether cooking seeds before planting will speed up germination and growth.

Dig up some dinos while promoting curiosity and sensory skills in this hands-on activity that will have your child searching for prehistoric treasure!

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

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.