What we need: Dark sack, LabQuest, Leaves, Bio chamber, Oxygen sensor
We put leaves into bio chamber. Then we cover it up with dark sack. After that we put the oxygen sensor into the bio chamber and we begin the measurment.
Measurement of oxygen
Decrease of oxygen
We found out the decrease of oxygen in the dark by covering it up with a dark sack so that the sunlight can't enter the bio-chamber