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Biology 2
Photosynthesis practical
Variables
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Cards (6)
Independent?
change
what is the independent variable for this practical?
light intensity
= start with
light source 10cm
away from
plant
then move it
further away
by
10cm
each time
dependant variable?
measure
What is the dependent variable of this practical?
‘rate
of
photosynthesis
=
count number
of
oxygen bubbles
made in
1 minute
Control variable?
keep same
What is the control variable for this practical?
temperature
,
concentration
of
Carbon dioxide
,
type
of
plant
,
mass
of plant and
age
of plant
