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Industry, Innovation and Infrastructure, Fifth Grade, Mechanical Engineering Science Projects (25 results)

The United Nations Sustainable Development Goals (UNSDGs) are a blueprint to achieve a better and more sustainable future for all.
These projects explore topics key to Industry, Innovation and Infrastructure: Build resilient infrastructure, promote sustainable industrialization and foster innovation.

If you're interested in object motion and enjoy building things or taking mechanical things apart to see how they work, then it sounds like you'd be interested in mechanical engineering.

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Ball Launcher Challenge
Science Fair Project Idea
Engineering Design Process
Try your hand at this engineering challenge. Can you build a "launcher" device to launch a ball as far as possible and a "receiver" to catch it? Building a receiver provides an extra twist to a traditional catapult project. Add to the challenge by using a limited set of materials to build your machine and calculate a score based on your throw distance and materials used. Read more
Bombs Away! A Ping Pong Catapult
Science Fair Project Idea
Scientific Method
If you were in a raiding army in the Middle Ages, a catapult would come in mighty handy for taking down castle walls. But only if you could aim it reliably! With this science project, you will try your hand at catapult technology. Using a rubber-band-powered catapult you will send ping pong balls flying through the air. The catapult's design makes it easy to measure and repeat how hard the ball is launched and its direction, so you can find the right catapult settings to hit the target reliably. Read more
Build a Water Clock to Show the Drip, Drip, Drip of Time
Science Fair Project Idea
Scientific Method
What are some of the ways we keep track of time? We have alarm clocks, wristwatches, and cell-phone clocks, to name a few. Just a few hundred years ago, our ancestors did not have any of these conveniences, yet they found ways to tell time. How? By using devices such as water clocks. In this science project, you will follow in the footsteps of early engineers and build a water clock that tracks time for three hours. Read more
Can Cell Phones Survive a Drop Test?
Science Fair Project Idea
Engineering Design Process
Why do so many people use cell phone cases? Do cell phones really need the extra protection, or is it just because cases look fancy? In this engineering science project, you will test the durability of calculators instead of cell phones, find out if cases increase the durability of the device, and build some of your own cases that do! Read more
Cricket Wicket Knockdown Challenge
Science Fair Project Idea
Scientific Method
In this cricket-inspired engineering challenge, you will build a machine to launch a ball and knock down a target (called a wicket). How many times can you knock down the wicket in three minutes? Teachers, lesson plan versions of this challenge are also available. Read more
Effect of Friction on Objects in Motion
Science Fair Project Idea
Scientific Method
The funny thing about friction is that you couldn't get anywhere without it, yet it still acts to slow you down as you're getting there. Here is an easy project to measure the effects of friction. Read more
Effect of Temperature on Elasticity of Rubber Bands
Science Fair Project Idea
Scientific Method
How much force can a rubber band withstand before breaking? Do rubber bands that stretch longer take more or less force to break? How does the elasticity of a rubber band change with temperature? Use a spring scale to measure the applied force, and a meter stick or ruler to measure the change in length. Recording with a video camera (or possibly two) can help you to capture the values at the moment before the rubber band breaks. You can change the temperature of the rubber bands using… Read more
Engineer a Cell Phone Stand
Science Fair Project Idea
Engineering Design Process
Look around you. What types of objects do you see in the room? Furniture, lights, a computer, a fan, pencils, books, etc.? Where did they come from? Odds are you did not build them yourself. You or your parents probably bought them at a store. Before that, they were built in a factory somewhere. And even before that, they were probably designed by engineers. You might think of engineers when you think of complex machines like rockets or huge structures like bridges, but engineers also design… Read more
Fractography: The Way Things Break
Science Fair Project Idea
Scientific Method
When something goes wrong, do you like to try to figure out why? Engineers do this all the time. They even have a fancy name for it: failure analysis. Understanding how different materials break is an important part of failure analysis. Here's a project with one approach to studying the way things break. Read more
Gears-Go-Round!
Science Fair Project Idea
Scientific Method
Music boxes, bicycles, and clocks all have one thing in common: GEARS! You might say that gears make the world turn, since they are in so many mechanical instruments. How do they work and how do you know which gears to use? Find out in this simple experiment. Read more
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