Take a glass of water with a few pins inside, How will you take out the pins without dipping your hand into water?

What happens when you take too much water without any salty diet?

Write a few slogans of your own on the topic "SAVE WATER".

A rectangular vessel when full of water, takes 10 min to be emptied through an orifice in its bottom. How much time will it take to be emptied when half filled with water?

A metal piece of mass 160 g lies in equilibrium inside a glass of water as shown in figure. The piece touches the bottom of the glass at a small number of points. If the density of the metal is 8000 kg m^-3 , find the normal fore exerted by the bottom of the glass on the metal piece.

Your friend is returning home after his visit to USA. All at home are waiting for his arrival. How would you feel? State the division of ANS that predominates and mention few changes that take place in your body.

Take a glass of water and put some ice cubes inte it. Observe it for some time. What happens? The ice cubes melt and disappear. Why did it happen?

Why your doctor advises you to drink plenty of water ?

List some of the ways in which you could save water in your home and school?