Colour Run Flowers
On Wednesday Year 2 were leaning about absorption. We made paper flowers and coloured them in with markers. We placed the flowers on wooden stems and put them into water.
We discussed that when you spray the folded blossoms with water, the fibres of wood (papers are made from wood pulp) take in the water, they soak up the water. This process is known as absorption. As the paper fibres absorb the water they swell and expand. The flower appears to open as the paper fibres expand. Many materials absorb water.
As the flowers sit in the cup of water overnight, the paper towel surrounding the stem absorbs water and travels up the bamboo skewer to the blossoms. This upward movement of water, against gravity is known as capillary action.
When we returned to our flowers the next day, the petals had absorbed the water and started to make the marker pens blend together.
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