Chemistry + Environmental Science
Make bioplastic from milk or starch
Make casein and starch plastics at home and test their strength and how they break down.
- Easy
- 1–2 weeks
- Under 250
606 projects · 13 streams · every class
What do you want to build?
53 projects
Photography, Film and Animation + Media and Journalism
Shoot a photo essay on your neighbourhood
Tell one story about a place in 12 photographs with captions.
- Easy
- 1–2 weeks
- Free
Civil Engineering + Physics
Build and load-test a spaghetti bridge
Design a truss bridge from dry spaghetti and glue, then load it until it fails and compute its efficiency.
- Easy
- 2–7 days
- Under 250
Pure Mathematics + Biology
Explore the Fibonacci sequence in nature
Count spirals on pine cones, sunflowers and pineapples and test whether they are Fibonacci numbers.
- Beginner
- 2–7 days
- Free
Agri-business and Food Science + Biology
Test how storage affects fruit and vegetable shelf life
Store the same produce in five ways and record weight loss and spoilage.
- Easy
- 1–2 weeks
- Under 250
Cybersecurity + Pure Mathematics
Implement classic ciphers and break them
Write Caesar and substitution ciphers, then crack them with frequency analysis.
- Easy
- 2–7 days
- Free
Civil Engineering + Earth Science
Design an earthquake-resistant building model
Build a simple shake table and test how bracing and base isolation protect a model tower.
- Intermediate
- 1–2 weeks
- 250–500
Electrical Engineering + Physics
Build a simple electric motor and measure its speed
Wind a coil motor with a paper-clip cradle and test how turns and magnets change its speed.
- Easy
- 1 day
- Under 250
Crops, Soil and Horticulture + Biology
Compare organic and chemical fertiliser on plant growth
Grow the same plant with compost, chemical fertiliser and nothing, and compare height, leaves and yield.
- Easy
- 2–4 weeks
- 250–500
Biology + Environmental Science
Map the biodiversity of a school ground
Survey plants and small animals with quadrats and calculate a biodiversity index for different areas.
- Easy
- 2–7 days
- Free
Mechanical Engineering + Physics
Build a mousetrap car and maximise its distance
Power a car with one mousetrap spring and tune the lever and wheels for distance.
- Easy
- 2–7 days
- 250–500
Environmental Science + Electrical Engineering
Build a wind turbine and find the best blade design
Build a small wind turbine on a DC motor and test how blade number, angle and length change the voltage.
- Intermediate
- 1–2 weeks
- 250–500
Geography + Environmental Science
Study a river or lake near you
Document the condition, uses and problems of a local water body and suggest how to protect it.
- Easy
- 1–2 weeks
- Free
Biology + Sports and Exercise Science
Measure how exercise changes pulse rate and recovery
Record pulse before, during and after exercise for several volunteers and compare recovery times.
- Easy
- 1 day
- Free
Environmental Science + Physics
Compare the energy use of bulbs
Measure the brightness and heat of LED, CFL and filament bulbs and calculate the yearly cost of each.
- Easy
- 1–3 hours
- 250–500
Physics + Environmental Science
Build a solar oven and measure its efficiency
Make a box cooker from cardboard and foil and track how hot it gets compared with open air.
- Easy
- 1 day
- Under 250
Pure Mathematics + Fine Arts
Explore tessellations and design your own
Find which regular polygons tile the plane and create an Escher-style tile.
- Beginner
- 1 day
- Under 250
Fine Arts + Psychology
Study colour and mood with an experiment
Paint the same image in four palettes and survey what mood each conveys.
- Easy
- 2–7 days
- Under 250
Astronomy and Space + Aerospace Engineering
Design a Mars habitat and justify every choice
Design a base for four astronauts and explain how it provides air, water, food, power and radiation shielding.
- Intermediate
- 1–2 weeks
- Under 250
Physics + Music, Theatre and Writing
Study the physics of a musical instrument
Measure how the length of a string or the water level in a bottle changes the pitch.
- Easy
- 2–7 days
- Under 250
Statistics and Probability + Biology
Estimate the size of a crowd or a population by sampling
Use capture-recapture with beans to estimate a hidden total, then judge how accurate the method is.
- Easy
- 1 day
- 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
Fine Arts + EdTech and Study Tools
Create a comic strip on a science concept
Explain one science idea in a two-page comic and test whether readers understand it.
- Easy
- 2–7 days
- Under 250
Robotics, IoT and Hardware + Graphic and UI/UX Design
Design and 3D print a useful object
Design a phone stand or cable holder in free CAD software and improve it over three versions.
- Easy
- 2–7 days
- 250–500
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