science scrap book Yuktha

TAN SRI DATO
MANICKAVASAGAM

SCRAP
BOOK

PLANTS

NAME: YUKTAA A/P
CLASS: THIVANANTHAN

4 DYNAMIC

SCHOOL TAN SRI DATO
NAME: MANICKAVASAGAM

PLANTS RESPONSES
TO STIMULI

LIKE HUMANS AND
ANIMALS,PLANTS ALSO
RESPOND TO STIMULI,SUCH
AS WATER,GRAVITY,LIGHT
AND TOUCH.LET US LOOK
AT THE PICTURE BELOW.

ROOTS

ROOTS RESPOND AND GROW
TOWARDS WATER AND
GRAVITATIONAL PULL

LEAVES

LEAVES OF SOME PLANTS
RESPOND TO TOUCH

SHOOTS

SHOOTS RESPOND AND
GROW TOWARDS LIGHT

PLANTS RESPONSES
TO STIMULI

SOME PLANTS,SUCH AS
MIMOSA PUDICA AND VENUS

FLYTRAP WILL DROOP AND
FOLD THEIR LEAVES INWARD
.........WHEN TOUCHED..........

THE NEEDS OF
PHOTOSYNTHESIS

Plants need
sunlight,chorophyll,carbon
dioxide and water for
photosynthesis.

THE NEEDS OF
PHOTOSYNTHESIS

Sunlight

MAIN SOURCE OF ENERGY.

Carbon dioxide

GAS IN THE AIR WHICH
ENTERS THE LEAVES.

Water

ABSORBED THROUGH THE
ROOTS.

Sunlight

GREEN COLOURED SUBSTANCE
IN PLANTS.