The SI unit of volume is cubic metre (m³). The common unit of measuring volume in litre (L). Then, 1L = …… dm³, 1L = ………. mL and 1 mL = …….. cm³.

A student spilled a bottle of ammonia in one corner of the laboratory. Soon the laboratory was filled with pungent irritating smell. The students immediately opened the windows and doors and switched on the exhaust fans. After some time, students got relief. What did actually happen? Explain.

Neha by mistake spilled a glass of water on the floor. Her mother suggested her to switch on the fan and after few minutes she found that all water disappears. She asked her mother how this happened and where all water has disappeared. On the basis of this, answer the following questions:

(i) What was the phenomenon associated with disappearance of water?

(ii) Why her mother suggested Neha to switch on the fan?

(iii) What are the values associated with her mother?

Find out the incorrect increasing/decreasing order in the following.

Kinetic energy of particles of water in three vessels X, Y and Z are E_x, E_y and E_z respectively. Then the temperature of water in the three vessels are