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

Okay, engaging in a graphing activity may sound ho-hum, but if you use fun data, it changes the picture entirely.

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

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

This project explores whether music affects the growth and health of plants.

Science fair project that tests how heat affects the chemical reaction between a seltzer tablet and a glass of water.

Science fair project that determines the relationship between the temperature and the rate of cricket chirping. How many times do crickets chirp each minute?

Easy and cool middle school science fair project on ripening process of fruits and measures you can take to prevent fruits from rotting and delay ripening.

Formulate a hypothesis and use the scientific method to determine the guess what is hidden in a box. Test abilities of volunteers, without opening box.

Science fair project that cultivates slime mold and monitors the stages of its development.

Examine the connection between temperature and chemiluminescence.

Will your liquid weigh less once you remove the fat from it? Find out in this science fair project idea.

This study observes plants, insects and an animal living in proximity to a known source of EMF.

Analyze competed scientific studies to determine the effectiveness of ancient remedies. Create a chart that illustrates the effectiveness of these treatments.

In this science fair experiment, high school students determine if all proteins denature at the same temperature.

This science fair project idea explores whether dry ice will cool a beverage faster than wet ice.

Practice counting with this winter kindergarten art project! As your child sculpts a clay igloo, he will work on math and dexterity and learn about snow.

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

Check out this cool middle school science fair project idea to determine if shopping carts are really carriers of harmful bacteria.

Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

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 homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

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

This activity is based on the popular card game, Slapjack. It's rip-roaring fun, and it reinforces the concepts of odd and even.

This science fair project idea creates an underwater habitat and explores the basic needs of living things under water.

This science fair project idea quantifies the effect of weather- in this case temperature and humidity- on musical instruments.

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

Marshmallows are made of sugar, water, and air pockets. Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?

Use reusable, recyclable materials--along with a dose of imagination--to build a castle with first grade geometrical forms.

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.