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? 

CLASS 8 REVISION

CLASS 8 REVISION 

1. The stage of an embryo when all the body parts can be identified is called____________

2. Time taken by an object to complete one oscillation is called______________________.

3. The process of depositing a layer of any desired metal on another material by means of electricity is called ______________________.

4. In which female reproductive organ does the embryo get embedded? 

5. Name the male hormone responsible for secondary sexual characters.

6. What is the audible range of frequencies for a normal human ear?

7. Fertilisation is necessary even in asexual reproduction.(T/F)

8. The passage of an electric current through a conducting liquid causes chemical reactions.(T/F)

9. Which of the following is essential for the production of thyroxine that changes a tadpole to a frog?

 (a) Sodium (b) Iodine (c) Nitrogen (d) Oxygen

10. In which of the following materials speed of sound is maximum? ( ) 

(a) Iron (b) Sea water (c) Fresh water (d) Air

11.Adrenalin is the hormone secreted by an endocrine gland. Name the gland and write about the function of adrenalin.

12. Define fertilisation. Differentiate between internal and external fertilisation.

13. A pendulum oscillates 40 times in 4 seconds. Find its time period and frequency.

 14. i) Draw and label a simple circuit showing electroplating.

ii) List any two objects around you that are electroplated.

15. i List any two sources of noise pollution in your surroundings.

 ii) Explain in what way noise pollution is harmful to human.

 iii) Write any two measures to limit noise pollution.

16.Define the following terms:

(i) Reproduction (ii) Fertilization (iii) Metamorphosis (iv) Foetus

(v) Binary Fission

                                               

17. (a) Write the differences between sexual and asexual reproduction. 

(b) Describe the asexual method of reproduction in amoeba with suitable diagram.

18.Which of these is an example of unicellular animals?

 (a) paramecium (b) hydra (c) Ant (d) All of these

19. The mode of reproduction in Hydra is

 (a) sexual reproduction (b) asexual reproduction

 (c) both (a) & (b) (d) None of these

20. Budding takes place in

(a) Amoeba (b) Hydra (c) Fist (d) Frog

21. Sperms collect and mature in the –

a) epididymis b) vas deferens c) scrotal sac d) testes

22.The electrode, connected to the negative terminal of a battery is - 

a) anode b) cathode c) electrolyte d) can’t say

CLASS 10 H.W

CLASS 10
SEXUAL REPRODUCTION IN PLANTS.

1. Draw the L.S of flower and labelled the following parts.

a. Innermost part of the flower.
b. Which receives pollen grains.
c. Which helps in pollination.
d. basal part of carpel.
e. The part on which all floral parts are arranged

CLASSS 7 REVISION

REVISION QUESTIONS

1. Name the breathing organs in
a) cockroach b) frog c) plant d) earthworm
2. Draw schematic diagram of circulation of blood
3. Give one function each of W.B.C and Platelets
4. a ) Write three differences between aerobic and anaerobic respiration.
b) Why do we get muscle cramps? How can you get relief from them?

5. a) What is breathing rate?
b) Arrange these activities from lowest breathing rate to highest?
Jumping, reading , running , sleeping
c) Write two differences between exhaled and inhaled air

6.The thinnest blood vessel is
a) Vein b) artery c) capillary d) platelet

 7.Two methods by which rusting of iron can be prevented

 8. Describe the function of heart?

9. Complete chemical equations:-
(a) Glucose ( in Presence of oxygen)--------------->
(b) Glucose (Absence of oxygen ) -------------->

 10. When baking soda is mixed with lemon juice, bubbles are formed with the evolution of gas. What type of change is it?

 11.Give technical term for:-

a) Muscular floor of chest cavity.

b) Air tubes of insects.

c) The opening through which we inhale.

12.Explain what will happen if there are no platelets in the blood?

13. Define transpiration. Does it serve any useful function in the plants?(any two)
14. Single largest artery is -------------------.
15. Structural and functional unit of kidney are ________________. 

Syllabus for periodic test 2

Syllabus for periodic test - 2

Class 6

1.Plant World
2. Magnets and their effects.
3. Electricity and circuits.


Class  7

1.Respiration in Organism.
2. Physical and chemical changes.
3. Transportation and Excretion.

Class  8

1. Sound
2. Reproduction in Animals.
3. Chemical Effect of electric current.


Class  9

Improvement in food resources.

Class  10

Control and Chemical co-ordination.