PHOTOSYNTHESIS LAB
PURPOSE: To find out how intensity and wavelength of light affect photosynthesis
HYPOTHESIS: I think that the uncovered leaf will produce the most
MATERIALS:2 Plants (with leaves)
Blue Cellophane
Test Tubes
Scissors
Lugol's Iodine
Black Paper
Tape
Petri Dish
Paper Towels
Tweezers
PROCEDURE:
1. Form a hypothesis about how the manipulation of variables will affect photosynthesis. Give reasoning.
2. Cover leaves with either black paper or red cellophane. Leave some leaves for control.
3. Wait one day for photosynthesis to occur.
4. Cut-off experimental and control leaves.
5. Extract chlorophyll with hot alcohol.
6. Rinse in water and place in petri dish.
7. Cover with iodine.
8. After a minute, remove and place on towel. Record color with assigned scale of (0-5).
HYPOTHESIS: I think that the uncovered leaf will produce the most
MATERIALS:2 Plants (with leaves)
Blue Cellophane
Test Tubes
Scissors
Lugol's Iodine
Black Paper
Tape
Petri Dish
Paper Towels
Tweezers
PROCEDURE:
1. Form a hypothesis about how the manipulation of variables will affect photosynthesis. Give reasoning.
2. Cover leaves with either black paper or red cellophane. Leave some leaves for control.
3. Wait one day for photosynthesis to occur.
4. Cut-off experimental and control leaves.
5. Extract chlorophyll with hot alcohol.
6. Rinse in water and place in petri dish.
7. Cover with iodine.
8. After a minute, remove and place on towel. Record color with assigned scale of (0-5).