Elementary School Science Experiments (Page 50)

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

Make a Biohybrid Robot

Science Fair Project Idea

Engineering Design Process

When you think of robots, you might think of things made out of plastic or metal...but what about living materials? Living materials have one big advantage: they can heal and repair themselves if they get damaged. Since it might not always be easy to repair a damaged robot (for example, a robot on another planet), some scientists want to figure out how to include living, or biological, materials in them to create "biohybrid" robots. In this project, you will create your own simple biohybrid… Read more

Measuring the Oxygen Content of Air

Science Fair Project Idea

Scientific Method

Earth's atmosphere, the ocean of air that blankets the planet, is mostly nitrogen and oxygen, with small amounts of other gases. How much oxygen is present in air at sea level? In air high up in the Appalachians or Rockies? Atop Mount Everest? How much oxygen is present in the air you breathe? Here's a project that shows you how to measure the percentage of oxygen in an air sample. Read more

Measuring Your Threshold of Hearing for Sounds of Different Pitches

Science Fair Project Idea

Scientific Method

If you're like most people, you like listening to music. Have you ever wondered how your ears and your brain turn the sound waves out there in the world into the experience of music in your head? If you're interested in doing a project about how we hear, this is a good one for you. With this project, you'll do background research and make measurements to understand how the sensitivity of your own hearing varies with the pitch of the sound. Read more

Monitor Your Plants with a Soil Moisture Sensor

Science Fair Project Idea

Scientific Method

Do you or your family have a lawn, garden, or potted plants that you water regularly? Irrigation—or the artificial application of water to plants and landscaping—accounts for over two-thirds of the world's freshwater consumption (U.S. Geological Survey, 2016)! While that total includes farms, in the United States landscape irrigation still accounts for almost one-third of residential water use. As much as half of that water is wasted due to inefficient watering methods (WaterSense,… Read more

Mouthwatering Candy Melt

STEM Activity

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What is your favorite type of candy? Have you ever wondered why you like this candy so much? Is it its taste, how it feels in your mouth, or both? Cooks and food scientists study how substances dissolve or melt to create a unique and pleasant sensation in the mouth and optimize the release of flavor. Would you like to know how your favorite candy works? In this science activity, you will study two types of candy and discover what makes them so enjoyable. Read more

Moving Water with the Archimedes Screw Pump

Science Fair Project Idea

Scientific Method

Amaze your friends and family by moving water with just a few turns of your wrist! Nope, it's not a magic trick. It's simply an Archimedes screw. In this science project, you will build a very simple pump, called an Archimedes screw, to transfer water from a low-lying location to a higher location. Read more

MrBeast "Protect the Prize" Challenge

Science Fair Project Idea

Engineering Design Process

MrBeast, the world's most famous YouTuber, has a series of challenge videos where he asks a contestant to protect some valuable prize - like a pile of money or an expensive car - from a series of attacks like explosions, giant fireballs launched from catapults, or even getting hit by a train! Contestants often have only 24 hours to build something to protect their prize, which presents a very interesting engineering challenge. Given limited time and access to materials, how can you best protect… Read more

NASA Asteroid Database: What Can You Learn About Our Solar System?

Science Fair Project Idea

Scientific Method

Did you know that in addition to the Sun and planets, our solar system is filled with millions of asteroids, which are chunks of rock left over from the early days of its formation, or from collisions between larger objects like planets? Agencies like NASA track asteroids, not only because they might pose a threat to humanity by colliding with Earth, but because they can provide us with information about the history of our solar system, and even be useful for mining raw materials in space! In… Read more

Optical Illusion Science Projects

Blog Post

Explore optical illusions and trick the eye with these science fair projects, experiments, and STEM activities. How Do Optical Illusions Trick the Eye? Optical illusions (also called visual illusions) can be fun, mind-boggling, mesmerizing, puzzling, and surprising! Our eyes don't always see what they should. An optical or visual illusion occurs when there is a disconnect between our brain and our eyes or when something goes wrong in the visual process. Science related to light, vision, and… Read more

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