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

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

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

Introduce your second grader to the crazy world of static electricity with just a balloon and a sheet of paper.

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.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

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 idea investigates if fats add to the flavor of food.

Air invisible; it doesn't make sounds; you can't pick it up and throw it. So how do we know it exists? Help your second grade scientist figure it out.

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

In this fun science experiment, kids will determine the best method for ripening avocados and discover the cool chemical reaction that makes this possible.

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old “why” questions. As you walk with your child, you can encourage them to ask questions.

This science fair project idea investigates if webbed feet help a duck (and others) swim.

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

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

This project determines what category of person is most likely to be ticklish.

This science fair project idea determines which method of hand cleansing is the most effective.

This science fair project idea explores how length affects the weight a bridge can hold.

Before you get ready for a delicious scramble or omelet, add a bit of science to your morning routine!

Here's a pressed leaf card project that puts science and writing together for your second grader.

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

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

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

Is it a square or a circle? See if you can trick your friends with this zany science project!

Combine your child's natural curiosity with his developing classification and writing skills by helping him create a backyard field guide.

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

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

Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.