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Homeostasis and Response
Plant Hormones
investigation to show effect of light on growth of seedlings
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Created by
Shekinah Obare
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Cards (9)
measure
heights
of
shoots
leave some in dark with light from one side
control
with
all-round
light or
rotating
in
dark
control
variable e.g. same
temperature
,
water
,
soil
type
after suitable time
record
appearance
of
seedlings
re-measure heights
of
shoots
use
thread
or
straighten
them out
calculate
mean height increase
for each group
use
protractor
to
estimate
angle of
bending
