1. A polished marble surface shines brightly while a brick wall appears dull. This indicates:

2. Which of these is smooth?

3. We can see clearly through glass.

4. Which of the following materials does not allow light to pass through?

5. Which is better for a raincoat?

6. For making a kite, which material will you choose?

7. Match the objects: Apple-?, Chair-?, Shirt-?

8. Any substance that is used to create an object is referred as ______

9. Why do shiny materials lose their lustre?

10. ______ is an insoluble material