Fifth Grade Science Experiments (Page 146)

Build Personal Playlists with Machine Learning

Science Fair Project Idea

Scientific Method

AI has the power to organize data into categories—even when it is not given clear instructions. In this project, we will create an unsupervised K-Means learning model that organizes songs into distinct groups based on their similarities. The best part? You don't need advanced coding skills; just bring an open mind and a desire to explore the fascinating intersection of music and technology. Are you ready to embark on this exciting journey? Read more

Build Your Own Helio Tracker—a Self-powered Mechanical Sunflower that Turns with the Sun

Science Fair Project Idea

Scientific Method

The amount of energy produced by most photovoltaic (solar) panels is limited, due to their immobility. However, when photovoltaic panels track the movement of the Sun, their efficiency increases significantly. This can be done with computers and sophisticated electronics, but for rural or wilderness settings, a "low-tech" sun tracker would be beneficial. A solution exists in nature: the sunflower. The challenge in this science fair project is to design and build a device that imitates the… Read more

Build Your Own Xylophone Out of Copper Pipe

Science Fair Project Idea

Scientific Method

Did you know that making a musical instrument is not just an art, but a science, too? You can discover just how scientific by building your own xylophone (or a set of chimes) from copper pipe. First you'll need to do some research about the math and physics involved in the sounds of a xylophone. For example, there are equations that describe the transverse (side-to-side) vibrations of a pipe. These vibrations create the sounds you hear. So, to get specific sounds, xylophone makers must apply… Read more

Building Paper Bridges: Family Science Spotlight

Blog Post

Build bridges from paper to explore civil engineering in this family STEM activity. Does the shape of the materials make a difference? What helps make a bridge strong? In this family science activity, explore bridge engineering with kids by making paper bridges that stretch between stacks of books. How does changing the shape of the materials (the paper) change the strength of the bridge? This is a fun and creative science activity you can do with… Read more

Building Structures: It's a Slippery Slope

Science Fair Project Idea

Scientific Method

Have you ever looked up at a skyscraper and thought "That is so cool!"? Building a skyscraper, or any structure, is more than just building the walls, windows, and floors. All structures require a foundation to keep them from falling down. This is especially important when a structure is built on a hill or on a slope. In this science project, you will build a tower of Lego® Duplos® on slopes with different angles. You will investigate how deep you have to dig the foundation for each… Read more

Building Toys: Doing Fun Science at Home during School Closures (Activity #5)

Blog Post

Follow along with a Science Buddies parent who is using family STEM activities to keep her kids learning at home during the COVID-19 school shutdown. New posts every Monday, Wednesday, and Friday. Today's adventure... playtime and science time converge when building parachutes for favorite toys. Building Toys Drives Away Boredom "I'm bored" is one of those sentences I hate as a parent. It ranks right up there with "Are we there yet?". These days… Read more

Burning Biofuels: Comparing Nonrenewable and Renewable Fuels

Science Fair Project Idea

Scientific Method

Have you considered where the gasoline that your parents put in your car comes from and how long that source will last? The fuel that most vehicles use, gasoline, is a petroleum product. Petroleum is a fossil fuel and is a nonrenewable form of energy, meaning we use it faster than it is able to be reproduced. Burning fossil fuels also produces pollutants that might hurt our environment. Using a kind of fuel from a renewable source would help save Earth's natural resources and cut down on… Read more

Calling It Quits: What Is the Most Effective Way to Quit Smoking?

Science Fair Project Idea

Scientific Method

Maybe you know someone who smokes, and you want to help them to quit. They've probably already told you how hard it is to stop once a person has started smoking. This project tries to answer the question: What is the most effective way to stop smoking? Read more

Camera Lens Testing

Science Fair Project Idea

Scientific Method

Do you ever use the manual camera settings when taking pictures with your phone? Does your phone have more than one camera lens? This project is a great way to learn more about your phone's camera(s) and how to take better pictures. You can also do this project with a traditional point-and-shoot camera or another camera like a DSLR. Read more

Camera 'Shakes'

Science Fair Project Idea

Scientific Method

You can compare the picture quality for photos taken at different shutter speeds with the camera handheld vs. with the camera on a tripod. (This is best done with a camera that has manual exposure control.) Read more

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