Physics · Fluid Mechanics
Build a hydraulic lift with syringes
Connect two syringes of different sizes and show how a small push lifts a large load.
- Easy
- 1 day
- Under 250
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Environmental Science · Water
Build a rainwater harvesting model and size a real tank
Make a working roof-to-tank model and calculate how much rain your own roof could collect.
- Easy
- 2–7 days
- 250–500
Physics · Electromagnetism
Build a homopolar motor and measure what changes its speed
Make the simplest electric motor from a cell, a magnet and wire, then test how magnets change its speed.
- Easy
- 1–3 hours
- Under 250
Architecture and Interior Design + History
Build a model of a famous building
Research a landmark and build a scale model with a note on its structure and history.
- Easy
- 1–2 weeks
- 250–500
History · Ancient History
Build a museum exhibit on an ancient civilisation
Make a model town, artefact replicas and labels that explain daily life in one ancient city.
- Easy
- 1–2 weeks
- 250–500
Robotics, IoT and Hardware · Arduino
Build a smart dustbin that opens by itself
Open a bin lid automatically when a hand comes near, using an ultrasonic sensor and a servo.
- Easy
- 2–7 days
- 500–1,000
Physics · Waves
Build a ripple tank from a baking tray
Show reflection, diffraction and interference of water waves with a tray, a torch and a phone camera.
- Easy
- 1 day
- Under 250
Physics · Optics
Show total internal reflection with a water stream
Trap a laser beam inside a curved stream of water, the way an optical fibre works.
- Easy
- 1–3 hours
- Under 250
Robotics, IoT and Hardware · Embedded Systems
Build a multiplayer quiz buzzer
Make a buzzer system that shows which of four teams pressed first.
- Easy
- 2–7 days
- 500–1,000
Automobile Engineering · Powertrain
Model a four-stroke engine
Build a card-and-syringe model that shows intake, compression, power and exhaust.
- Easy
- 2–7 days
- 250–500
Fine Arts + Environmental Science
Sculpt with recycled materials
Build a sculpture from discarded materials that says something about waste.
- Easy
- 1–2 weeks
- Under 250
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