CONDITIONS FOR BURNING

CONDITIONS FOR BURNING

fuel/ amount of fuel

fuel

W.S. p. 14-15

W.S. p. 14-15

W.S. p. 14-15

Conditions for Photosynthesis

W.S. p. 16

Design expt.

Conditions for Photosynthesis

W.S. p. 16

Design expt.

Conditions for Photosynthesis Carbon dioxide

Carbon dioxide

starchV

VV V

Put 2 green leaves inside 2 colourless bags A and B respectively. Add a bag of soda lime in bag A.

4. After 4 hours, test the 2 leaves for starch.

Carbon dioxide

Yes

No Carbon dioxide

No

Carbon dioxide

W.S. p. 16

Design expt.

Burning & Respiration

carbon Carbon dioxidewater

Carbon dioxide + water + energy

oxygenCarbon dioxide

water Energyrespiration

Carbon dioxide + water + energy

W.S. p. 17

Oxygen

Carbon dioxide

waterEnergy

Slow

Controlled

In the presence of fuel and oxygen

all livingcells

W.S. p. 17

Breathing, Burning & Respiration

Trachea Bronchus

Blood vessels

upwards

inwards

downwards

increasesdecreases

in

downwards

outwards

upwards

decreasesincreases

out

W.S. p. 18

Mechanical / physical

Mechanical/physical

ribs diaphragm

breathing

chemical

energy

chemical Heat energy,

sound energy,Kinetic energy

Respiratory system

ribs

diaphragm

W.S. p. 18

Carbon dioxide + sunlight +

chlorophyll

Photosynthesiswater

starch

oxygen

To kill the cells and make it softTo remove chlorophyll

To wash away the alcoholTo test for starch

W.S. p. 19

W.S. p. 19

Oxygen + Food Carbon dioxide + water

Carbon dioxide + water

Starch + oxygen

Oxygen Carbon dioxide

Carbon dioxide Oxygen

Chemical energy heat energy, sound energy

Light energy Chemical energy

All living cells

Chlorophyll

All the timeAt day time

W.S. p. 19