Sun

Point out what happens to pot plants or window boxes when it is very hot and sunny. Show him how the flowers droop over and dry up.
Look out for dark shadows when the sun is shining brightly.

Can you child tell you why flowers droop in the hot sun and what he needs to do about it to rectify the situation? Let him water the flowers and watch them stand up straight again. To show him that the flower stem has actually acted as a straw and sucked up the water, put a carnation in colored water and watch as the flower head turns the same color as the water.
Can your child identify what has caused which shadows? Have fun making puppet character shadows by moving your hands in front of a light source.