The seven colours in a rainbow are Violet, Indigo, Blue, Green, Yellow,
Evaporation is the process through which water is converted from its liquid form to its vapor form. It is transferred from land and water masses to the atmosphere. This forms clouds and through rains, the water is referred back to the water body and land.
Give children examples from real life so they can associate better. This will not only help them understand but also remember what they have learnt.