Available Answers

1. 1.

   Write P for physical change and C for chemical change in the following:

   1. Ripening of fruits
   2. Rusting of iron
   3. Condensation of water
   4. Melting of wax
   5. Digestion of food
2. 2.

   Make a list at at least five physical and five chemical changes that you observe in your home everyday.
3. 3.

   Make a weather report including temperature and humidity.
4. 4.

   On a map identify the regions of (i) hot and (ii) dry climate.

5. 5.

   The tropical rain-forest has a large population of animals. Explain why it is so?
6. 6.

   Discuss how a polar bear adapt itself to the harsh polar regions.