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OpenStem
@openstem · Joined Jul 2026
7420 public items8 groups
Collection4 items
01Engineering · L1 · Pipes & Water Flow
02Engineering · L1 · Pipes & Water Flow
03Engineering · L1 · Water's Journey to Your Tap
+1 moreEngineering · L1 · Pipes & Water Flow
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Engineering · L1 · Pipes & Water FlowCollection4 items
01Engineering · L1 · Materials That Change With Heat
02Engineering · L1 · Materials That Change With Heat
03Engineering · L1 · Choosing a Material for a Pot Handle
+1 moreEngineering · L1 · Materials That Change With Heat
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Engineering · L1 · Materials That Change With HeatCollection4 items
01Engineering · L1 · Measuring & Units
02Engineering · L1 · Measuring & Units
03Engineering · L1 · Measure Twice, Cut Once
+1 moreEngineering · L1 · Measuring & Units
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Engineering · L1 · Measuring & UnitsCollection4 items
01Engineering · L1 · Everyday Inventions
02Engineering · L1 · Everyday Inventions & the Problems They Solve
03Engineering · L1 · Inventing a Better Pencil Holder
+1 moreEngineering · L1 · Everyday Inventions
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Engineering · L1 · Everyday InventionsCollection4 items
01Engineering · L1 · Bridges for Kids
02Engineering · L1 · Bridges for Kids: Beam, Arch, and Suspension
03Engineering · L1 · Choosing A Bridge Type For A Gap
+1 moreEngineering · L1 · Bridges for Kids
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Engineering · L1 · Bridges for KidsCollection4 items
01Engineering · L1 · Towers & Stacking
02Engineering · L1 · Towers & Stacking: Why Wide Bases Win
03Engineering · L1 · Will This Tower Design Stay Stable?
+1 moreEngineering · L1 · Towers & Stacking
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Engineering · L1 · Towers & StackingCollection4 items
01Engineering · L1 · Remote Controls & Signals
02Engineering · L1 · How Remote Controls Send Signals
03Engineering · L1 · From Button Press to Device Reaction
+1 moreEngineering · L1 · Remote Controls & Signals
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Engineering · L1 · Remote Controls & SignalsCollection4 items
01Engineering · L1 · Fans & Motors
02Engineering · L1 · Motors: The Spinning Part Inside
03Engineering · L1 · How a Fan Makes a Breeze
+1 moreEngineering · L1 · Fans & Motors
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Engineering · L1 · Fans & MotorsCollection4 items
01Engineering · L1 · Boats & Floating Cargo
02Engineering · L1 · Boats & Floating Cargo
03Engineering · L1 · Loading Cargo Onto a Boat
+1 moreEngineering · L1 · Boats & Floating Cargo
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Engineering · L1 · Boats & Floating CargoCollection4 items
01Engineering · L1 · Dressing for Weather
02Engineering · L1 · Dressing for Weather
03Engineering · L1 · Choosing an Outfit for the Weather
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Engineering · L1 · Dressing for WeatherCollection4 items
01Engineering · L1 · Teamwork in Engineering
02Engineering · L1 · Building Together: Teams of Engineers
03Engineering · L1 · A Playground Built by a Team
+1 moreEngineering · L1 · Teamwork in Engineering
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Engineering · L1 · Teamwork in EngineeringCollection4 items
01Engineering · L1 · Prototypes & Model Building
02Engineering · L1 · Prototypes: Try Small Before You Try Big
03Engineering · L1 · From Idea to Improved Prototype
+1 moreEngineering · L1 · Prototypes & Model Building
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Engineering · L1 · Prototypes & Model BuildingCollection4 items
01Engineering · L1 · Wheels & Axles
02Engineering · L1 · Wheels & Axles: Rolling and Turning Made Easy
03Engineering · L1 · How a Wheel-and-Axle Multiplies Force
+1 moreEngineering · L1 · Wheels & Axles
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Engineering · L1 · Wheels & AxlesCollection4 items
01Engineering · L1 · Ramps & Wedges
02Engineering · L1 · Ramps & Wedges: Sloped Simple Machines
03Engineering · L1 · Long Ramp vs. Short Ramp
+1 moreEngineering · L1 · Ramps & Wedges
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Engineering · L1 · Ramps & WedgesCollection4 items
01Engineering · L1 · Conductors & Insulators
02Engineering · L1 · Conductors and Insulators
03Engineering · L1 · Conductor or Insulator?
+1 moreEngineering · L1 · Conductors & Insulators
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Engineering · L1 · Conductors & InsulatorsCollection5 items
01Engineering · L3 · Ohm's Law & Power
02Engineering · L3 · Ohm's Law & Electrical Power
03Engineering · L3 · Sizing a Resistor for a Target Current
+2 moreEngineering · L3 · Ohm's Law & Power
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Engineering · L3 · Ohm's Law & PowerCollection4 items
01Engineering · L1 · Magnets
02Engineering · L1 · Magnets: Push, Pull, and Everyday Uses
03Engineering · L1 · How a Junkyard Crane Picks Up Scrap Steel
+1 moreEngineering · L1 · Magnets
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Engineering · L1 · MagnetsCollection4 items
01Engineering · L1 · Air Takes Up Space
02Engineering · L1 · Air Takes Up Space and Pushes Back
03Engineering · L1 · Squeezing Trapped Air
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Engineering · L1 · Air Takes Up SpaceCollection4 items
01Engineering · L1 · Wind & Sails
02Engineering · L1 · Wind & Sails
03Engineering · L1 · How a Sail Catches the Wind
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Engineering · L1 · Wind & SailsCollection4 items
01Engineering · L1 · Counting the Cost
02Engineering · L1 · Counting the Cost of a Project
03Engineering · L1 · Adding Up Project Costs
+1 moreEngineering · L1 · Counting the Cost
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Engineering · L1 · Counting the CostCollection4 items
01Engineering · L1 · Keeping a Design Notebook
02Engineering · L1 · Keeping a Design Notebook
03Engineering · L1 · A Notebook Habit, Step by Step
+1 moreEngineering · L1 · Keeping a Design Notebook
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Engineering · L1 · Keeping a Design NotebookCollection4 items
01Engineering · L1 · Levers & Seesaws
02Engineering · L1 · Levers & Seesaws: Pivoting Your Way to a Big Lift
03Engineering · L1 · How a Seesaw Balances
+1 moreEngineering · L1 · Levers & Seesaws
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Engineering · L1 · Levers & SeesawsCollection4 items
01Engineering · L1 · How Gears Turn Each Other
02Engineering · L1 · How Gears Turn Each Other
03Engineering · L1 · Two Meshed Gears Turning Opposite Ways
+1 moreEngineering · L1 · How Gears Turn Each Other
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Engineering · L1 · How Gears Turn Each OtherCollection4 items
01Engineering · L1 · Light Bulbs: Electricity Into Light
02Engineering · L1 · How a Bulb Turns Electricity Into Light
03Engineering · L1 · Old-Style Bulb vs. LED Bulb
+1 moreEngineering · L1 · Light Bulbs: Electricity Into Light
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Engineering · L1 · Light Bulbs: Electricity Into LightCollection4 items
01Engineering · L1 · Sound Makers
02Engineering · L1 · How Electricity Makes Sound
03Engineering · L1 · How a Buzzer Makes a Sound
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Engineering · L1 · Sound MakersCollection4 items
01Engineering · L1 · Hot Air Rises
02Engineering · L1 · Hot Air Rises
03Engineering · L1 · Why Hot Air Rises
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Engineering · L1 · Hot Air RisesCollection4 items
01Engineering · L1 · Water Turning to Steam
02Engineering · L1 · Water Turning to Steam
03Engineering · L1 · How a Steam Train Gets Its Push
+1 moreEngineering · L1 · Water Turning to Steam
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Engineering · L1 · Water Turning to SteamCollection4 items
01Engineering · L1 · Trade-Offs
02Engineering · L1 · Trade-Offs: More of One, Less of Another
03Engineering · L1 · Weighing a Trade-Off
+1 moreEngineering · L1 · Trade-Offs
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Engineering · L1 · Trade-OffsCollection12 items
01Engineering · L2 · Gears, Pulleys, and Circuits
02Engineering · L2 · A Simple Electric Circuit
03Engineering · L2 · Circuits and Gears Quiz
+9 moreEngineering · Electrical & Control
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Engineering · Electrical & ControlCollection7 items
01Engineering · L2 · Bridges and Forces
02Engineering · L2 · Gears, Pulleys, and Circuits
03Engineering · L2 · The Engineering Design Cycle
+4 moreEngineering · L2 · Structures & Circuits
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Engineering · L2 · Structures & Circuits