Believe it or not, we were actually able to see a leaf giving off oxygen. (And it's the easiest experiment in the world!) First, we gathered a variety of green leaves from trees and bushes on the playground.
Some of us got a little sidetracked ... 😊
After we found the perfect leaf, we placed it inside a clear glass jar and covered it with water. We also used rocks to ensure that our leaf stayed submerged in the water.
We put the lids on the jars and waited about an hour. Seriously, that's all there is to it. When we checked our leaves, we were able to see air bubbles on the leaves and in the water! The bubbles weren't there when we started -- they were created by the leaf giving off oxygen!
We examined leaves using magnifying glasses, labeled parts of a leaf and then "colored" the leaf green using chlorophyll from a real leaf!
"I don't know why I'm so good at chlorophyll," she said before turning to help a friend! 💚
Then we went outside to choose yet another leaf. We picked the deepest green leaf we could find, crushed it, placed it inside a glass or cup, and then covered it with rubbing alcohol.
(Today was crazy hair/hat day at school ... just sayin'.)
We added a filter strip (literally, a coffee filter cut into strips) and then stuck one end of the filter strip down into the liquid. We sat our cups in a sunny windowsill and waited a few hours.
Pretty soon, we had tints of green creeping up our filter strips ... and soaking through our cheap paper cups! 😊
Who would have ever thought kindergartners could extract chlorophyll from leaves? I love doing science with these guys!
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