In Fig. 8.2 there are snakes of the same size slithering on the sand. Can you identify which of them would move faster and why?

Earthworms are known as ‘farmer’s friends’. Why?

(a) Unscramble the jumbled words and write them in the blank spaces provided.

(i) neosb ……………….

(ii) themevom ………………..

(iii) iontcaronct …………………

(iv) lsecsum …………………

(v) arctigeal …………………….

(vi) epahs …………………….

(vii) sangro inerlan …………………….

(viii) laxaaeriont ……………………

Read the following paragraph and fill in the blanks using the words you unscrambled.

………(a)…….. and ………(b)…….. from the skeleton of the human body. They provide the framework. Give ……………(c)……….. to the body and help in ………….(d)………… They protect the …(e)……. The bones are moved by alternate …….(f)….. and …….(g)…… of two sets of ……(h)……… attached to them.

How is the skeleton of a bird well-suited for flying?