Group A: The Greenhouse effect. (left pic:3rd day of expt., right pic:8th day of expt.)
On the 3rd day of observation, a few concluded that the bean outside the green house germinated faster because it received more air. Most of others who studied carefully the bean inside the greenhouse, confidently pointed out that the bean inside germinated and grew faster because the water vapour was trapped inside giving water back to the soil. In this way,the plants get water under the scorching sun. Both hypothesis were logical. Check out the 'answer' in your child's Science exercise book.
Group B: Chlorophyll is green? (thank you Cayden,Bryan & Joshua's mother for your 10ml of nail polish removal)
The nail polish removal solution turned green instantly when we dropped fresh leaves into it. On the following day, the leaves turned pale and the solution became darker green in colour. We placed a stripe of kitchen paper into the solution. The next day,there were different spectrum of green colour. "See, the paper is filled with green colour, chlorophyll is really green!" claimed one of the interested pupil.
Group C: Do plants perspire?
Right after watering the plant,we wrapped it up in a plastic bag and placed it away from direct sunlight. The next morning, 'wow' so much 'sweat'. Children witness that respiration happened to plants too quite similar to the way our glasses/spectacles get blurred when we breathe onto it.
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