Compare the area of the folder papers with that of the roll. Do you find any increase in the area ? If so try to find out the reasons ?

Do you find any difference in the taste of a raw and a ripe fruit ?

Do you find any new material after burning ?

Do you find any change in volume of air in syringe ?

Do you find any difference in the shape of epidermal cells ?

Filter the mixtures. Did you find any residue on the filter papers

Let us consider different squares of sides 2, 3, 4 and 5cm, Find the areas of the squares and fill the table. What do you observe? Do you find any change in the area of the square with a change in its side? Further, find the area of a square to the length of its side. Is the ratio same? Obviously not. :. This variation is not a direct proportion

Do you find any attachments on upper portion of kidney

Find the area of the following figures:

Let us consider different squares of sides 2,3,4 and 5 cm , Find the areas of the squares and fill the table . . What do you observe ? Do you find any change in the area of the square with a change in its side ? Further , find the area of a square to the length of its side . Is the ratio same ? Obviously not . :. This variation is not a direct proportion .

Do you find any relation between smoothness and time to dry?