Hydrogen carbonate indicator test

1. Plan an experiment to investigate how light intensity affects the absorbtion of CO2 byleaves.

C-change →We will change the availability of light for each boiling tube (not wrapped, wrapped in foil,                       wrapped in gauze)

O-organism →The leaves should be from the same species/age of the plant, they should be approximately the same size

R-repeat →We will repeat the investigation several times to ensure our results are reliable

M-measure →after 30 minutes. We will observe the change in the hydrogen carbonate indicator

S-same →We will control the volume of hydrogen carbonate indicator, the number of leaves, the temperature of the environment

For this experiment, use HYDROGEN CARBONATE INDICATOR:

• Measure out 20 cm3 hydrogencarbonate indicator into 4 boiling tubes
• Put some cotton wool into each boiling tube
• Label the boiling tubes A-D and set them up as follows:
  • Tube A…