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

What happens when you heat an iron rod on a flame? Do you find any change in colour on heating an iron rod?

Do you find any change in colour and smell of water in some water samples? What are your reasons?

Do you find any change in direction of sunrise between winter and summer season?

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

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 new material after burning ?

do you find any minerals and vitamins in soft drinks ? what are they ?

Do you find any attachments on upper portion of kidney

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 ?