This fundamental exercise doubles as an art project and a science experiment. Children get to watch a scientific phenomenon called chromatography in action while making some lovely coffee filter art!
Chromatography is the separation of a mixture (for example, marker ink) by passing it through a medium (for example, a coffee filter) in which the components of the mixture (for example, the numerous colours that make up any given marker colour) flow at different rates.
What you need
- Filter for coffee
- Markers
- Cup filled with water
- A pipette made of plastic
How to make it
- Let your child use the markers to draw on the coffee filters.
- Then drip water onto the designs with a disposable pipette. The water will spread the colour from the markers.
Top tip: Use a small amount of water rather than completely soaking the coffee filters.
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