Build a Water Filter
Ask. Predict. Build. Observe. Explain. Improve.
- Primary · Junior High
- About 45 min
Learning World
Build, test and improve. Hands-on investigations using materials you can find at home or at school.
Start a learning adventure
A journey gives you the whole experience: learn it, try it, connect it to life in Ghana, then check what you understood.
Ask. Predict. Build. Observe. Explain. Improve.
Feel how a machine makes work easier.
8 curated resources
Every card shows how long it takes, how much data it uses and where it comes from. External resources open on the provider's own site.
8 resources
Build a simple filter from a plastic bottle, sand, gravel and cloth, and see how it changes muddy water.
Why Lovia recommends this: It uses materials found almost anywhere and teaches separation, observation and fair testing.
What to do: Follow the Lovia journey step by step. Safety: filtered water is NOT safe to drink, even when it looks clear.
Ghana connection: Connects to household water storage and the difference between clear water and safe water.
Lovia Original — created by Lovia School. Rights: Open licence. Last checked 2026-09-10.
Plant a bean seed and record what changes each day for two weeks.
Why Lovia recommends this: Teaches patient observation and recording — the habit at the centre of all science.
What to do: Plant two seeds. Water one, keep the other dry. Draw both every day for two weeks and write one sentence each day.
Ghana connection: Compare your results with what farmers do at the start of the rainy season.
Lovia Original — created by Lovia School. Rights: Open licence. Last checked 2026-09-10.
Make a lever and a pulley from everyday materials and measure how much easier lifting becomes.
Why Lovia recommends this: Learners feel the difference a machine makes, which explains the idea better than a definition.
What to do: Build the lever first. Move the pivot and notice when lifting becomes easiest.
Ghana connection: Look for levers and pulleys at a building site, a well or a market stall.
Lovia Original — created by Lovia School. Rights: Open licence. Last checked 2026-09-10.
Build a paper bridge, test how much it carries, then redesign it to carry more.
Why Lovia recommends this: The improve step is the real lesson: a first design that fails is useful information.
What to do: Test with coins or stones, one at a time. Record the number carried before it bends.
Ghana connection: Look at how a footbridge near you is shaped, and why.
Lovia Original — created by Lovia School. Rights: Open licence. Last checked 2026-09-10.
Measure how the sun heats water in different containers, and explain the difference.
Why Lovia recommends this: Solar energy is visible daily in Ghana; measuring it turns a familiar thing into evidence.
What to do: Fill two identical containers with the same amount of water. Put one in shade, one in sun. Compare after one hour. Safety: do not touch hot containers with bare hands.
Ghana connection: Relates directly to solar panels, solar water heating and drying crops in the sun.
Lovia Original — created by Lovia School. Rights: Open licence. Last checked 2026-09-10.
Make a simple rain gauge and record rainfall, cloud and temperature for two weeks.
Why Lovia recommends this: Turns learners into data collectors, then gives them their own data to interpret.
What to do: Record at the same time every day. Draw a bar chart at the end of two weeks.
Ghana connection: Compare your record with what farmers expect at this point in the season.
Lovia Original — created by Lovia School. Rights: Open licence. Last checked 2026-09-10.
Design a way to water plants slowly using a bottle, and test whether it works.
Why Lovia recommends this: A genuine engineering problem with a real agricultural purpose and a measurable result.
What to do: Make a small hole in a bottle cap. Time how long the bottle takes to empty. Change the hole size and test again.
Ghana connection: Drip watering is used in dry-season farming to make limited water go further.
Lovia Original — created by Lovia School. Rights: Open licence. Last checked 2026-09-10.
Make a working circuit with a battery and small bulb, or test the same ideas in a simulation.
Why Lovia recommends this: Every learner should build one working circuit; if components are unavailable, the simulation stands in.
What to do: Use only a small torch battery and a small bulb. Safety: never use mains electricity, wall sockets or car batteries for this activity.
Lovia Original — created by Lovia School. Rights: Open licence. Last checked 2026-09-10.
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