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Second Grade, Mechanical Engineering Projects, Lessons, Activities (27 results)

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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Build a Mini Trebuchet
STEM Activity
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454 reviews
You probably know what a catapult is. In the Middle Ages armies would use them to hurl stones at castle walls. But did you know about an even bigger type of medieval siege weapon called a trebuchet? Try this project to build a miniature version! Read more
Build a Rubber Band-Powered Car
STEM Activity
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574 reviews
Admit it, you've probably launched a rubber band at least once—pulled one end back, and let it go flying. Did you ever suspect that rubber bands could also be a fun way to learn about physics and engineering? Find out in this project where you'll build a rubber band-powered car. Read more
Build a Wind-Powered Car
STEM Activity
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354 reviews
Is that a sailboat or a sail...car? Design and build a toy car powered by the wind in this fun engineering project! Read more
Protect Your 'Eggstronaut': Build an Egg-Drop Lander
STEM Activity
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155 reviews
The egg-drop project is a classic and time-honored tradition in many science classes. The goal is usually to build a device that can protect an egg when dropped from a high location. This activity puts a twist on the classic project, motivated by real-world advances in space exploration. Can you build a reusable egg-drop lander that can survive repeated falls from the same height? Try this activity and find out Read more
Make Cardboard Automata
STEM Activity
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102 reviews
Have you ever wondered how to create art with moving parts using nothing but cardboard, a few skewers, and some craft supplies? In this fun STEM activity, you will build an automaton, a machine that makes parts appear and disappear, move up and down, spin in circles, or all of these together. The instructions will show you how to build a moving caterpillar, but you can use your imagination to build any other animal or object you want! Read more
Build a Rubber Band Paddle Boat
STEM Activity
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52 reviews
Build your own bathtub or pool toy from simple craft materials in this fun activity! You will build a rubber-band-powered boat that can zip across the surface of the water after you wind up the rubber band. Read more
Make the Fastest Rubber Band Paddle Boat
Science Fair Project Idea
Engineering Design Process
Rubber band paddle boats are a fun bathtub or pool toy that you can build yourself. How do you make a boat that goes the fastest? Find out in this project as you build and test your own boat. Read more
DIY Mini Propeller Car
STEM Activity
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85 reviews
Build your own mini propeller car with craft materials and a simple circuit in this fun STEM activity! 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
Rubber Bands for Energy
Science Fair Project Idea
Scientific Method
If you have ever been shot with a rubber band then you know it has energy in it, enough energy to smack you in the arm and cause a sting! But just how much energy does a rubber band have? In this experiment you will find out how the stretching of a rubber band affects the amount of energy that springs out of it. Read more
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