Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

Learn about the microclimate of your backyard by tracking rainfall, temperature, and observed weather with hand drawn charts and graphs.

Explore scientific concepts with this experiment that introduces kids to the scientific method!

Reinforce your child’s understanding of the alphabet by helping them construct all of the letters using pipe cleaners.

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

This science fair project idea examines which type of insulation holds in the most heat.

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

Help kids tap into their inner inventor by teaching them how to make peanut butter through trial, error, and lots of taste testing!

This science fair project idea explores whether talking to a plant will help it grow.

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

This project is a vivid, concrete introduction to the basic but important idea that plants need sunlight and water to grow.

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

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

This science fair project idea investigates the hardness property of minerals.

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

This science fair project idea determines what household items are good conductors of electricity.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

This science fair project idea examines the reason boats are shaped and engineered.

This science fair project idea determines what household items are good conductors of electricity.

In this activity, students will think about the form and function of household objects as they compare and contrast kitchen serving spoons of various sizes and designs.

With this cool floating rocks project, your child will get some hands-on experience with buoyancy and learn why certain rocks like pumice are able to float.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

This easy aerodynamics activity is a simple way to introduce kids to the scientific method.

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