EVS Std IV Chapter one

1. The Life Cycle of Animals

(A) Answer in brief.
1. Why must the hen sit on her eggs?
2. Why does a hen become aggressive when she is hatching her eggs?
3. Which are the four stages of the life cycle of a butterfly?
4. Which changes take place inside the chrysalis of the Plain Tiger butterfly?

(B) True or false?
1. A lamb emerges from an egg.
2. We cannot easily see the eggs of an ant because they are very tiny.
3. When the caterpillar emerges from the egg, it is not very hungry.

(C) Fill in the blanks.
1. The female butterfly lays ________________ on the leaves of a plant.
2. The larva of a butterfly is called a ____________________.

(D) Define
1. Hatching    2. Moult