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
Science projects 25
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.
25 Science projects
We couldn't find an exact match. These are the closest 25, found by leaving out the time limit.
Or look inPhysicsChemistryBiologyEnvironmental ScienceEarth ScienceAll ScienceTwo-subject projectsHelp me choose
Physics · Fluid Mechanics
Build a hydraulic lift with syringes
Connect two syringes of different sizes and show how a small push lifts a large load.
- Easy
- 1 day
- Under 250
Chemistry · Electrochemistry
Build a lemon battery and compare fruits
Make cells from fruit, zinc and copper, measure their voltage and light an LED with several in series.
- Easy
- 1–3 hours
- Under 250
Environmental Science · Pollution
Measure air quality with sticky cards
Hang petroleum-jelly cards at five locations and compare the particles they collect in a week.
- Easy
- 2–7 days
- Under 250
Environmental Science · Water
Build a rainwater harvesting model and size a real tank
Make a working roof-to-tank model and calculate how much rain your own roof could collect.
- Easy
- 2–7 days
- 250–500
Chemistry · Inorganic Chemistry
Investigate what speeds up rusting
Leave iron nails in different conditions for a week and find what makes rust form fastest.
- Easy
- 2–7 days
- Under 250
Biology · Plant Science
Study how light colour affects plant growth
Grow seedlings under red, blue, green and white light and compare height and leaf colour.
- Easy
- 2–4 weeks
- 250–500
Chemistry · Physical Chemistry
Grow crystals and test what changes their size
Grow alum or sugar crystals and find how cooling speed changes crystal size.
- Easy
- 1–2 weeks
- Under 250
Environmental Science · Waste Management
Audit your school's waste for a week
Sort and weigh one week of school waste by type and propose how to cut the largest share.
- Easy
- 1–2 weeks
- Under 250
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
Biology · Zoology
Survey the birds of your neighbourhood
Do weekly point counts of birds at three sites and compare species between habitats.
- Easy
- 2–4 weeks
- Free
Environmental Science · Water
Build a solar still to purify water
Make drinking-quality water from salty water with sunlight and measure how much you get.
- Easy
- 1 day
- Under 250
Biology + Environmental Science
Track how composting changes kitchen waste
Set up compost bins with different mixes and record temperature, smell and breakdown for a month.
- Easy
- 2–4 weeks
- Under 250
Astronomy and Space · Rocketry
Build and launch a paper rocket with a stomp launcher
Launch paper rockets with compressed air and test how fins and nose shape change the distance.
- Easy
- 1 day
- Under 250
Chemistry + Environmental Science
Model the effect of acid rain on building stone
Soak chalk and marble chips in liquids of different acidity and measure the mass they lose.
- Easy
- 2–7 days
- Under 250
Biology · Animal Behaviour
Study the behaviour of ants at a food source
Offer ants different foods and record which they prefer and how trails form.
- Easy
- 2–7 days
- Under 250
Physics + Environmental Science
Model the greenhouse effect in two bottles
Compare how fast air and carbon-dioxide-rich air warm under the same lamp.
- Easy
- 1 day
- Under 250
Earth Science · Geology
Classify local rocks and make a rock key
Collect ten rocks, test hardness, streak and reaction to vinegar, and build an identification key.
- Easy
- 2–7 days
- Under 250
Environmental Science · Climate
Measure how trees cool their surroundings
Record air and surface temperatures under trees, on grass, on concrete and on tar through a day.
- Easy
- 2–7 days
- Under 250
Physics · Mechanics
Investigate how temperature affects the bounce of a ball
Chill and warm identical balls and measure how bounce height changes with temperature.
- Easy
- 1 day
- Under 250
Earth Science · Physical Geography
Model a river and study erosion
Run water down a sand tray and see how slope, flow and plant cover change erosion.
- Easy
- 1 day
- Under 250
Chemistry + Environmental Science
Test how well different materials filter dirty water
Build layered filters from sand, gravel and charcoal and compare how clear the water comes out.
- Easy
- 1 day
- Under 250
Earth Science + Crops, Soil and Horticulture
Test soil types for water holding and drainage
Pour water through sand, clay and loam and measure how much each holds and how fast it drains.
- Easy
- 1 day
- Under 250
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