Crossword puzzle:
Down
1. Outermost layer of the earth.
4. A term for diamond, graphite, etc.
6. Topmost layer of the earth's surface.
Across
2. Innermost part of the earth.
3. A type of soil which is a mixture of sand and clay.
5. An example of rocks found under water.
7. Decaying plant and animal matter. 

 

Look at the image given below and complete the sentence.

Earthen pots are made from a type of _____. [stone / soil]

Form a similar pair of words.

Rice and _____ / millets and sandy soil.

Write short notes on the following:

Blue planet.

Solve the crossword puzzle with the help of the clues provided
Down
1. Earth's second layer.
2. Heavenly body that revolves around a planet.
3. The imaginary line that passes through the North and South poles.

Across
4. The first artificial satellite launched by India.
5. The planet on which life exists.
6. The planet that is called morning and evening star.