Question

Learn to calculate the surface area of leaf.

Take a leaf. Draw the leaf on a graph paper. Remove the leaf from the graph paper. Count the squares and half squares (as you have learnt in Mathematics).

Total surface area of the leaf (in cm²) = ______

After you find out the leaf surface area of your leaf, now calculate the water loss according to conditions mentioned in the table below:

Condition	Total Water Loss after 30 minutes (in ml)	Leaf Surface Area in cm2	Leaf Surface Area in m2 (divide cm2 by 10,000 or 104)	Water loss in ml/m2/ 30 minutes
Room (control)	0.005
Bright light	0.007
Fan (wind)	0.009
Foggy day	0.003

Answer 1

Total surface area of the leaf (in cm²) = 100

Condition	Total Water Loss after 30 minutes (in ml)	Leaf Surface Area in cm2	Leaf Surface Area in m2 (divide cm2 by 10,000 or 104)	Water loss in ml/m2/ 30 minutes
Room (control)	0.005	100	0.01	`0.005/0.01` = 0.5
Bright light	0.007	100	0.01	`0.007/0.01` = 0.7
Fan (wind)	0.009	100	0.01	`0.009/0.01` = 0.9
Foggy day	0.003	100	0.01	`0.003/0.01` = 0.3