Earth Science · Seismology
Build a seismograph and record vibrations
Make a pen-and-weight seismograph that draws a trace when the table shakes.
- Intermediate
- 2–7 days
- Under 250
606 projects · 13 streams · every class
Science projects 30
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.
30 Science projects
Physics · Optics
Measure the wavelength of a laser with a ruler
Reflect a laser at grazing angle off a steel ruler and get its wavelength from the diffraction spots.
- Intermediate
- 1–3 hours
- Under 250
Physics · Waves
Investigate standing waves on a string
Drive a stretched string with a small speaker and find how frequency depends on tension.
- Intermediate
- 1 day
- 250–500
Physics · Fluid Mechanics
Measure surface tension by counting drops
Use the drop-weight method to compare the surface tension of water, soapy water and oil.
- Intermediate
- 1 day
- Under 250
Physics · Oscillations
Study damping with a pendulum in air and water
Film a pendulum losing amplitude in air and in water and test whether the decay is exponential.
- Intermediate
- 1 day
- Under 250
Chemistry · Electrochemistry
Electrolyse water and collect the gases
Split water with a 9 V battery and show that hydrogen and oxygen form in a 2:1 ratio.
- Intermediate
- 1 day
- Under 250
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