Biology · Plant Science
Find which conditions seeds need to germinate
Germinate seeds with and without water, warmth, air and light, and find which conditions are essential.
- Beginner
- 1–2 weeks
- Under 250
606 projects · 13 streams · every class
Science projects 10
Experiments, working models and investigations in physics, chemistry, biology, earth and space. Most can be done at home or in a school lab, and each one says what it costs and how long it takes.
10 Science projects
Chemistry · Analytical Chemistry
Make a red cabbage pH indicator and test household liquids
Extract a natural indicator from red cabbage and rank household liquids from acid to base.
- Beginner
- 1–3 hours
- Under 250
Physics · Mechanics
Calibrate a spring and build a newton meter
Stretch a spring with known weights, plot the graph and turn it into a force meter you can use.
- Beginner
- 1–3 hours
- Under 250
Physics · Optics
Build a pinhole camera and find its magnification
Make a box camera with no lens and show that image size depends on object and screen distance.
- Beginner
- 1–3 hours
- Under 250
Chemistry · Analytical Chemistry
Separate ink colours with paper chromatography
Separate the dyes in marker pens on filter paper and calculate an Rf value for each colour.
- Beginner
- 1–3 hours
- Under 250
Chemistry · Physical Chemistry
Investigate which liquids conduct electricity
Build a simple conductivity tester and sort solutions into electrolytes and non-electrolytes.
- Beginner
- 1–3 hours
- Under 250
Environmental Science · Climate
Model the melting of ice caps and sea level
Show that melting land ice raises water level but melting floating ice does not.
- Beginner
- 1–3 hours
- Under 250
Environmental Science · Water
Build a simple water filter and test it
Layer cotton, sand and gravel in a bottle and see how clear muddy water becomes.
- Beginner
- 1 day
- Under 250
Chemistry + Biology
Extract DNA from fruit in your kitchen
Pull visible strands of DNA out of a banana or strawberry with soap, salt and cold alcohol.
- Beginner
- 1–3 hours
- Under 250
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
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