class 6 revision

CLASS 6 REVISION

1.Name the device that breaks or completes the circuit

2. Draw a simple closed circuit with the help of a bulb, two cells, connecting wires and a key. Also mark the direction of current.

 3a). Write any two Properties of magnets.
 b). Complete the following 
 i). N ______ N ___________________
 ii) N_____________ Attraction
 iii) S________N ____________________
 iv) ______________ S Repulsion
 c). How can the properties of a magnet be lost? 
4 a) What is a compass? 
 b) How do you find the direction of your classroom using a compass?
c) How can you magnetize a small iron pin?

5.A Freely suspended magnet will come to rest in
 a).North -South direction 
b). North -East direction
 c).East - west direction
 d). South -West direction

6. In a torch the energy conversion takes place as
 a).Chemical -----> Electrical --------> Light 
b).Electrical ------>Light --------->Chemical 
c).Light --------> Electrical -------->Chemical 
d).Chemical ------->Light --------->Electrical

7. Name the gas used by green plants to make their own food.
8. Name three plants and their parts that we eat.

 9.Name the plant parts that performs following functions
  a. Anchoring.                     b. Transpiration                               c. Conduction                 d. Reproduction.
10. List the ingredients needed for photosynthesis.

11. Mention types of roots and types of venation and find their correlation.
12. Differentiate Herbs, Shrubs and Trees.
13. List the essential and non-essential parts of flower with respect of reproduction in plants.
14. Give terms for the following.
  a. Green leaves make food by this process.           
  b. Water vapour loss through leaves.

15. You have observed your father handling the electric equipment by wearing gloves. Why? 
16. If you connect a battery cell to the bulb through a wooden stick, the will not glow. Why?
17. Your father applies a tape over the joint of a electric wire. Why?
18. Do not handle the electric appliances when your hands are wet. Why?
19. There will be three coloured wires normally used while connecting any electric equipment. What are those colours? Tell which coloured wire gives us electric shock?

20. When you are listening to song by using a small radio, it gives lot of disturbance when you changing the direction. Why?
21. If you want listen to a song by using a small radio by sitting in a rail compartment, you can’t Why?
22. While storing the magnets, a wooden stick is kept between the two magnets. Why?
23. Do not keep magnets near electronic equipment. Why?
24. Why a wooden piece can not made as a magnet?