Match the items in Column I with one or more items of Column II.
| Column I | Column II |
| Upper jaw | have fins on the body. |
| Fish | has an outer skeleton. |
| Ribs | can fly in the air. |
| Snail | is an immovable joint. |
| Cockroach | protect the heart. |
| - | shows very slow movement. |
| - | have a streamlined body |
| Column I | Column II |
| Upper jaw | is an immovable joint. |
| Fish | have fins on the body, have a streamlined body |
| Ribs | protect the heart. |
| Snail | shows very slow movement. |
| Cockroach | has an outer skeleton, can fly in the air |
Explain why the bulb would not glow in the arrangement shown in Fig. 9.13.

Complete the drawing shown in Fig. 9.14 to indicate where the free ends of the two wires should be joined to make the bulb glow

Would the bulb glow after completing the circuit shown in Fig. 9.14 if instead of safety pin we use an eraser?


| Object | Material |
| Book | Glass |
| Tumbler | Wood |
| Chair | Paper |
| Toy | Leather |
| Shoes | Plastics |
Write first five multiples of :
| Column 1 | Column 2 |
| (i) 35 | (a) Multiple of 8 |
| (ii) 15 | (b) Multiple of 7 |
| (iii) 16 | (c) Multiple of 70 |
| (iv) 20 | (d) Factor of 30 |
| (v) 25 | (e) Factor of 50 |
| (f) Factor of 20 |