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
606 projects · 13 streams · every class
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15 projects
Psychology · Experiments
Test the Stroop effect
Time how long people take to name ink colours when the word says a different colour.
- Easy
- 2–7 days
- 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
Psychology · Cognitive Psychology
Measure the limits of short-term memory
Find how many digits people can repeat and whether grouping them helps.
- Easy
- 2–7 days
- Free
Behavioural and Cognitive Science · Attention
Test how multitasking affects performance
Compare how fast and accurately people do a simple task alone and while answering messages.
- Easy
- 2–7 days
- 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
Sports and Exercise Science · Performance Analysis
Compare warm-up routines and sprint times
Time 50 m sprints after no warm-up, jogging and dynamic stretching.
- Easy
- 1–2 weeks
- Free
History · Archaeology
Study the archaeology of everyday rubbish
Analyse a bag of clean household waste as an archaeologist would and infer how the household lives.
- Easy
- 2–7 days
- 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
Languages and Linguistics + Teaching and Learning
Test which method helps you learn vocabulary fastest
Learn three sets of new words by rereading, flashcards and spaced recall, and compare what you remember.
- Easy
- 1–2 weeks
- Free
Biology + Psychology
Test whether music or silence helps short-term memory
Give volunteers word lists to memorise in silence, with instrumental music and with songs, and compare recall.
- Easy
- 2–7 days
- 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
Programming + Psychology
Build a reaction-time tester and analyse the results
Write a program that measures reaction time, then use it to compare conditions such as time of day.
- Easy
- 2–7 days
- 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
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