Programming · Python
Build a number guessing game in Python
Write a game where the computer picks a number and tells the player "higher" or "lower".
- Beginner
- 1–3 hours
- Free
606 projects · 13 streams · every class
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17 projects
Statistics and Probability · Probability
Test the birthday paradox
Calculate and test the chance that two people in a group share a birthday.
- Easy
- 1–3 hours
- Free
Statistics and Probability · Probability
Estimate pi by dropping needles
Drop sticks on ruled paper, count how many cross a line and get an estimate of pi.
- Easy
- 1–3 hours
- 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
Physics · Waves
Measure the speed of sound with two phones
Use two phones with an acoustic stopwatch app to time a clap over a known distance.
- Easy
- 1–3 hours
- Free
Astronomy and Space + Pure Mathematics
Measure the Earth's circumference like Eratosthenes
Measure a stick's shadow at local noon in two cities and calculate the size of the Earth.
- Intermediate
- 1 day
- Free
Communication · Interpersonal
Study how rumours change as they spread
Pass a short story along a chain of ten people and track what is lost, added and changed.
- Easy
- 1 day
- Free
Software Development · Frontend
Build a pomodoro timer app
Make a 25-minute focus timer with breaks, sounds and a count of sessions done.
- Beginner
- 1 day
- Free
Pure Mathematics · Algebra
Make and analyse a magic square
Build 3×3 and 4×4 magic squares and prove why the centre of a 3×3 must be 5.
- Beginner
- 1–3 hours
- Free
Behavioural and Cognitive Science + Biology
Measure reaction time and what affects it
Use the ruler-drop test to compare reaction times between hands, ages and times of day.
- Beginner
- 1 day
- Free
Astronomy and Space + Photography, Film and Animation
Photograph star trails and find the celestial pole
Take a long exposure of the night sky and measure the Earth's rotation from the arcs.
- Intermediate
- 1 day
- Free
Pure Mathematics · Combinatorics
Find patterns in Pascal's triangle
Build 16 rows of the triangle and discover at least six patterns hidden in it.
- Easy
- 1–3 hours
- Free
Data + Statistics and Probability
Test whether a coin or die is fair with statistics
Roll a die 300 times and test whether the results fit a fair die.
- Easy
- 1 day
- Free
Statistics and Probability · Probability
Investigate the Monty Hall problem
Play the three-door game 100 times each way and show why switching wins two-thirds of the time.
- Easy
- 1–3 hours
- Free
Photography, Film and Animation · Photography
Photograph light: a study of one subject across a day
Photograph the same subject every hour from dawn to dusk and study how light changes it.
- Beginner
- 1 day
- Free
Physics · Kinematics
Show that falling time does not depend on mass
Film objects of different mass falling together and compare their fall times frame by frame.
- Beginner
- Under 1 hour
- Free
Programming · Scratch
Make an interactive story game in Scratch
Create a choose-your-own-adventure story with characters, scenes and choices.
- Beginner
- 1 day
- Free
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