Second Grade Science Projects (Page 8)

How to Design a Great Cat Toy

Science Fair Project Idea

Scientific Method

Do you love animals and want to help keep them healthy? Well, here's your chance to design and tailor a toy that will bring out your pet's most playful nature. In this science fair project, you'll evaluate the skills and activities of your pet and determine what kinds of toys most excite your pet and make him or her lively and curious. So call your furry or feathered friend, and let the frolicking begin! Read more

Investigate the Motion of a Pendulum

Science Fair Project Idea

Scientific Method

"Swing me higher, Mommy, higher!" Kids love to ride the swings at the playground. The back-and-forth motion of a swing demonstrates the physics of a pendulum. In this experiment, you will investigate the factors that affect the speed and duration of a pendulum's swing, also called an oscillating motion. You can even use your phone and a sensor app to record your pendulum's movement and determine its period of oscillation. Read more

Is That Cat Overweight?

Science Fair Project Idea

Scientific Method

Did you know that there are millions of overweight cats and dogs in the United States? Is your pet one of them? How about your neighbor's cat or your grandma's dog? In this science project you'll determine what percentage of the pets you know are overweight and how their weights compare to pets' weights throughout the United States. Read more

Juice Box Geometry

Science Fair Project Idea

Scientific Method

Juice boxes are so convenient—just poke the straw in and sip away! But have you ever noticed that some juice boxes don't seem to have much juice, even when they have a lot of packaging? It might surprise you how much thought goes into the design and manufacturing of a juice box. Each manufacturer has carefully calculated how big each side should be to hold a certain amount of juice inside. In this science project, you will find out how different brands of juice measure up. Read more

Jumping Distance

Science Fair Project Idea

Scientific Method

Mike Powell of the United States currently holds the world record for the long jump at 8.95 meters, which is almost 30 feet! How did he jump so far? In this experiment, learn how a long jumper uses momentum from running to jump farther than the competition. Read more

Kaleidoscope Science

Science Fair Project Idea

Scientific Method

A kaleidoscope is a fun toy that creates amazing images when you look into it. Wouldn't it be fun to create those images yourself? Check out this project to learn how to build your own kaleidoscope and to learn how the inside of a kaleidoscope works. Then you can create and adjust your own amazing, colorful images! Read more

Keep Your Candy Cool With the Power of Evaporation!

Science Fair Project Idea

Scientific Method

Did you know that your body has a built-in cooler? And it might not be what you think! Sweat is produced when you are hot, but its purpose is actually to cool your body as the water in it evaporates from your skin. In this science fair project, you'll use the energy produced when water evaporates to cool down chocolate-covered candy so it doesn't melt. Read more

Keeping Up

Science Fair Project Idea

Scientific Method

Do you ever feel like you need to move your legs faster than your parents do just to keep up with them? This could be because of the difference in leg length between you and your parents. How many more steps do you need to take compared to your parents to walk down the block? Can you use a walking test to determine how tall a person is? This science project will help you find out! You can even use your phone and a sensor app to record the steps and determine the pace. Read more

Knock Your Blocks Off: The Mechanics of Carnival Games

Science Fair Project Idea

Scientific Method

"Hey kids, step right up! Toss this ball and win a prize!" shouts the carny barker. Sounds easy enough—until you try it. Why are those "simple" games at the fairs, carnivals, and boardwalks so hard? Is it really lack of skill or coordination or do those concessionaires use some basic laws of science to help them set up the games in their favor? This science fair project can help you find out for yourself. Read more

Let's Go Fly a Kite!

Science Fair Project Idea

Scientific Method

Kites have been a source of entertainment for centuries for kids from cultures around the world. In this science project you will have a chance to build your very own kite, a simple sled kite. Then you will use it to investigate how kites fly. Will you find out the best way to fly your kite? Read more

Second Grade Science Projects (158 results)

Explore Our Science Videos