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

Is there a relationship between caffeine and heart rate? Students will determine the effect of caffeine on heart rate in this fun science fair project.

This science fair project idea discovers whether there are some objects that do not fall at a constant rate.

Help your second grader grasp the concept of verb tenses with this silly card game!

What's the relationship between temperature, air humidity and static electricity? Kids will find out with this free static electricity science fair project.

Master addition, subtraction, multiplication, and division through practice in this fun math game designed for fourth grade!

This science fair project idea studies which kind of rock (sedimentary, igneous, or metamorphic) is most damaged by frozen water.

This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

This fun and easy activity encourages the skill of overlapping objects, while your child gets to draw his own farm and color in clip art farm animals!

Make counting coins make "cents" to your second grader while giving her the chance to practice her math skills by playing this fun game with her.

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

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

This science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

This science fair project idea explores how far the âdanger zoneâ is from different types of caution signs.

Science fair project in which you will learn more about the natural world by preserving and identifying different animal tracks.

This science fair project idea researches the different layers of the atmosphere and creates a visual representation of the atmospheric layers.

Play a game of "restaurant" to reinforce real-world applications of counting and using money.

Play this fun basketball game to help your third grader master their multiplication tables.

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.

This science fair project idea explores whether it is easier to balance on a narrow ledge or on a rope.

Science fair project in which you will start a fire from scratch without using matches or a lighter.

This science fair project idea determines if the size of the parachute will change the rate at which an object falls.

This science fair project compares the allelopathic affects of juglone, a chemical agent produced by the Black Walnut tree, on two plants.

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

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

This science fair project idea explores whether cats can be trained in the same way that dogs can.