Carbon Dioxide in our Breath?
Limewater Experiment
by Mrs. Kwolek's 5th grade class
We want to know if we really have carbon dioxide in our breath. Carbon dioxide will turn limewater white. In the first picture we filled a test tube about 1/3 full of limewater. In the second picture someone is blowing through a straw into the limewater. The limewater turned white. In the third picture we are showing what the limewater looked like after blowing air into it. This proves that there is carbon dioxide in our breath.