CP investigating plant mineral deficiencies

Question 1

blurt

Answer 1

control needed where plant recieves all nutrients necessary

Question 2

DV

Answer 2

number of leaves before/after time period

mass of plant before/after

appearance of plant before/after

Question 3

IV

Answer 3

nutrient broth the plants are grown in /mineral content of the water

Question 4

CVs

Answer 4

-one plant grown in broth with all nutrients needed
-same age, species time since picked of plants
-repeats for each different broth used
-volume of solution used

think factors affecting photosynthesis:

light intensity (aluminium foil to keep light away)
CO2 availability

Question 5

method

Answer 5

-measure mass/count leaves/make note of appearence of plants used from same source
-place equal numbers into different conditions
-leave for time period to grow
-take new measurement, if measuring mass blot dry before taking measurements