What is dry ice? What happens when the pressure under which it is stored is decreased to $1$ atmosphere?

Explain the interconversion of three states of matter in terms of force of attraction and kinetic energy of the molecules.

Once Ravi and Aman were cooking rice in the kitchen and accidentally Aman's hand got a severe burn while opening the lid of the cooking vessel. Immediately,Ravi applied ice on his hand,then applied an ointment,and told him to cook carefully as he had been hurt by steam,and steam causes more severe burns. Aman thanked Ravi and smiled.
$(a)$ According to you,what kind of qualities are shown by Ravi?
$(b)$ How does steam produce more severe burns than boiling water?

Why are we able to sip hot tea or milk faster from a saucer rather than a cup?

Why do we see water droplets on the outer surface of a glass containing ice-cold water?

$(a)$ State one similarity and one difference between evaporation and boiling.
$(b)$ Account for the following:
$(i)$ We wear cotton clothes in summer.
$(ii)$ $A$ wet handkerchief is placed on the forehead of a person suffering from high fever.
$(iii)$ Wet clothes dry slowly during the rainy season.