Fun and Easy STEM Projects for Kids

Original DIY designs from truss bridges to rubber band race cars, helicopters and rockets.

 

Explore 30 cool projects or browse by category.

Rubber Band Helicopter

Powered by rubber bands, this helicopter is easy to build and can fly straight up over 20ft.

Suggested ages: 7+

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Science Fair Experiment Guide

Propeller Powered Car

This rubber band-powered propeller car design is optimized for speed and distance.

Suggested ages: 9+

Marble Roller Coaster

Experiment with the science of momentum, potential energy, and conservation of energy.

Suggested ages: 5+

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Science Fair Experiment Guide

Mousetrap Car

A classic mousetrap car design. Create the car, then use math to predict the distance it will go.

Suggested ages: 11+

Class 1 Lever Catapult

This push-powered catapult is an exciting way to teach the concept of a class 1 lever.

Suggested ages: 9+

Pull-String Spinner

A quirky project, the pull-string spinner shows kids the concept of angular momentum.

Suggested ages: 9+

Zip Line Racer

This simple propeller-powered invention zips along a taut string at remarkable speeds.

Suggested ages: 9+

Pyramid Catapult

A simpler catapult that doesn't require hot glue, yet it can fire far and get kids excited.

Suggested ages: 7+

Easy Pneumatic Machine

Experiment with the science of pneumatics (air pressure-power) to create a powered lift.

Suggested ages: 7+

Mini Projects

Keep these 3 quick and easy  engineering activities on hand to fill out extra class time.

Suggested ages: 5+

Rubber Band Car

A high-performing rubber band-powered car design. Big wheels provide traction and distance.

Suggested ages: 9+

Triangle Truss Bridge

Stronger than a square-shaped bridge, this truss bridge design will hold extremely heavy loads.

Suggested ages: 9+

Hydraulic Lift Bridge

Create a hydraulic-powered lift, then design and build a truss bridge to activate.

Suggested ages: 11+

Hydraulic Box

Engineer a hydraulic-powered box project for kids to store their small possessions.

Suggested ages: 11+

Class 3 Lever Catapult

This rubber band-powered catapult is a fun way to show what a class 3 lever is.

Suggested ages: 9+

Hydraulic Judo Robot

Create a custom hydraulic-powered robot project, then compete in a judo-like competition.

Suggested ages: 11+

Egg Crash Car

Better than the egg drop challenge: Engineer a car that keeps an egg safe in a collision.

Suggested ages: 7+

Gliding Car

Use the science of aerodynamics to create a car that can gently glide to the floor.

Suggested ages: 7+

Wind-Powered Car

Create a lightweight car that's easy to build and powered by the wind.

Suggested ages: 7+

3D Geometric Shapes

Transform basic geometric shapes into more complex 3-dimensional forms.

Suggested ages: 5+

Slingshot Car

Simple to build with a big payoff, the slingshot car zips across the floor surprisingly fast.

Suggested ages: 7+

Easy Hydraulic Machine

Build a simply hydraulic mechanism, then customize its function however you'd like.

Suggested ages: 9+

Slingshot Straw Rocket

Simple and cheap to build, yet slingshot straw rockets can be launched well over 75ft.

Suggested ages: 7+

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Science Fair Experiment Guide

Bow and Arrow

A kid favorite, the craft stick bow and arrow is fun to build and exciting to play with.

Suggested ages: 9+

Handheld Slingshot

Truss supports and rubber band power enable this durable slingshot design to shoot far.

Suggested ages: 9+

Tornado Truss Tower

Build a strong tower comprised of trusses, then test its strength and stability.

Suggested ages: 9+

Pyramid Slingshot

Inspired by the 'viking catapult,' this design is simple yet strong due to the pyramid structure.

Suggested ages: 7+

Trigger Launcher

A kid favorite, the trigger launcher is easy to customize and a blast to use.

Suggested ages: 7+

Mechanical Grabber

Engineer a mechanical hand, then test different designs until it can pick up anything.

Suggested ages: 11+

DIY Robot Kits

Explore our Etsy shop of original robot kits made from laser cut wood and simple electronics.

Suggested ages: 11+

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