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Showing posts with label SCIENCE. Show all posts
Showing posts with label SCIENCE. Show all posts

Wednesday, 2 November 2022

CLASS 9, SCIENCE, PT

 PERIODIC TEST 

CLASS - 9 SUBJECT - PHYSICS

1. Define acceleration and give its SI unit.(1)

2. Write difference between scalar and vector quantity.(2)

3. Write the difference between weight and mass.(2)

4. What is Universal law of Gravitation?(2)

5. Drive F=ma.(3)

6. Drive first equation of motion.(3)

7. Why it is advised to tie the luggage kept on the roof of the bus?(3)

8.  (A) An automobile vehicle has a mass of 1500 kg. What must be the force between the vehicle and road if the vehicle is to be stopped with a negative acceleration of 1.7 ms–2? (3)

(B) Define free fall.(2)

9. (A) A stone is released from the top of a tower of height 19.6 m. Calculate its final velocity just before touching the ground?(3)

(B) Define inertia.(2)

Friday, 30 September 2022

CLASS-4, SCIENCE, PT

 

Class –IV                                  Subject- Science

Time : 1.5 hour                                  M.M. – 30

SECTION – A

I. Objective type questions.

1. Tick the correct () answer.                                                5

1. How should we use soap and detergents?

    a) moderately, because they cost very much. [  ]

    b) as much as we want [  ]

    c) as little as possible because soap and detergents can harm animals in the lakes and the sea. [  ]

2. What does the green effect do ?

    a)makes plants green. [  ]

    b) encourages people to build green house.  [  ]

    c) produce extreme weather conditions like storms and hot weather. [  ]

3. Which one of these products is biodegradable?

    a) aluminum can [  ], b) plastic bags  [  ], c) apple  [  ]

4) Earth is the only planet which has.

    a) dust and rocks [  ], b) gas and ice [  ], c) air and water [  ]

5) Air is made up of.

    a) Liquids [  ], b) Solids [  ], c) gases [  ]

2. Fill in the blanks with the word given.                                5

(dirty, world, infections, germs, drain)

i. Dirty surroundings invite…………………and…………………

ii. Environment means the ……………. Around us.

iii. Epidemic diseases can occur in…………areas

iv. The water from our house goes down the…………

 

3. Put a tick  () for correct and a cross (X) for false statements.      5

a. Air has weight and it exerts force.    [  ]

b. Air is present everywhere. [  ]

c. We can see the air. [  ]

d. Water vapour is present in are. [  ]

e. A balloon filled with air is lighter than an empty balloon. [  ]

 

4. Match the column A with column B.                                                5

A                                  B

Paper                           Non-biodegradable

Detergents                  biodegradable

Rubber                        Non-biodegradable

Plastic                          biodegradable

Leftover food              non-biodegradable

 

SECTION – B

II Short answer type Questions.                                                         10

1. Define biodegradable waste.

2. What is air? Name its various constituents.

3. Mention any two properties of air.

4. What is environmental sanitation?

5. Draw any two pictures of biodegradable waste or non-biodegradable waste.

 

CLASS-3, SCIENCE, PT

Class –III              Subject- Science

Time : 1.5 hour                                  M.M. – 30

1.         ALL QUESTIONS ARE COMPULSORY.

2.         QUESTION PAPER IS DIVIDED INTO TWO SECTION.

3.         MARKS ARE ALLOTTED AGAINST EACH SECTION/QUESTION.

SECTION – A

I. Objective type questions.

1. Fill in the blanks. With words given in bracket.                  5

(Cotton plants, rubber, cooking oil, burrow, den)

1. Lion lives in……………………

2. ……………..gives us the cotton to make the clothes we wear

3. Mustard plant gives us……………..

4. Rubber tree gives us…………….

5. Rabbit lives in……………..

II. True or false.                                                                       5

1. Shrubs are smaller than herbs.

2. Desert plants have thorns all over their body.

3. Gum tree gives us glue to stick things.

4. There is no harm in cutting trees.

5. Van Mahotsava is celebrated in the first week of July.

III. Match the column.                                                            5

            A                                  B

1. Non green plants                cheetah, horse

2. Trees                                   Pitcher plant

3. Animals living on trees        Mushrooms

4. Insect eating plant              Mango, Neem

5. Good runners                      Monkey

IV. Tick the correct answer                                                     5

 1. Plants live for many years are called.
    a) Shrubs         [  ], b) herbs                 [  ]
    c) trees             [  ], d) creepers            [  ]
2. Plants grow on mountains are.
    a) Coconut       [  ], b) Mushrooms      [  ]
    c) fir and pinc  [  ], d) None of these   [  ]
3. Leaves of these trees are used for medicines.
    a) Mustard Plant         [  ], b) Stable                [  ]
    c) Neem tree               [  ], d) none of these    [  ]
4. Dogs live in.
    a) den              [  ], b) Stable                [  ]
    c) Kennel         [  ], d) coop                  [  ]
5. Animals move from one place to another to.
    a) Search of food and water   [  ]
    b) Go look for shelter [  ]
    c) To protect themselves [  ]
    d) All of above [  ]

 

                                            SECTION –B


V. Answer the following-                                                       10

1. Name any two aquatic plants.

2. What is Van Mahotsav?

3. Name any two animals living on trees? 
4. How can fish swim in water?
5. Draw picture of any two.

  a. aquatic plants

            b. herbs

  c. shrubs

            d. tree



Tuesday, 27 September 2022

CLASS-3, SCIENCE, TERM

CLASS – 3  RD

SUBJECT- science

M.M.- 70                                                                                                               TIME -21/2 HOURS

 

1.      Tick the correct answer

2.  People who don’t eat egg and meat are called –

 (a)  Vegans      (b) Non vegetarian          (c) Vegetarian 

3. Food  help  us to  stay-

(a) Healthy       (b) Unhealthy                   (c) Worried

4. Sachin  Tendulkar  is  known  for  this  game –

(a) Football       (b) Cricket                        (c) Basketball

4. Pond  is   an  artificial  source   of –

(a) Air        (b) Water                                 (c) Gas

5. Which  is  the  indoor  game –

(a) Chess (b) Football                                 (c) Cricket

2.Write (T) for  true  and (F)  for false  statement :

(a)  We get coffee from coffee seeds. (      )

(b) Animals and birds need water to drink and wash . (     )

(c) Cooking makes the food tasty . (      )

(d) Games makes us fit and healthy. (     )

(e) Black pepper is used for coloring pictures. (      )

3.Fill  in  the  blanks  with  help  of  helpbox :

( fresh ,  before , energy , Playing ,  sunlight )

(a)    __________  is  a  form  of  recreation .

(b)    Carbohydrates  give  us  __________ .

(c)     Always  eat  _______   food .

(d)    Solar  cooker  uses  __________ to  cook  food .

(e)    Wash  our  hand ________  eating  food .

 

4.Match  the  column

1. Microwave                  wood and coal

2. Tandoor                       cooking gas

3. Chullah                        electricity

4. LPG Gas stove             kerosens  oil

5. Kerosene stove         wood and coal

 

    5. Short   answer  type  question :

1. Why do we need food?

2.Name any three indoor game?

3.What is used for making food items like  idlis and  dosas ?

4.Name  modern  means  of  recreation .

5.Name  any  three  dal  or  pulses .

6. Name the different  parts  of  a  plant  that  we  eat .

7. Name some games played in olden times.

8. Name any three roots of plants.

9.What are the main sources of food?

10. Name any three utensils.

6. Long  answer  type  questions:

1.What  are  the  different   ways  of  cooking ?

2.Write  any  four  uses  of  water.

3.Why  is  playing  important ?

4.Name  any  four  natural  sources  of  water ?

5. What  is  called  vegetarian ?

:              

Sunday, 25 September 2022

CLASS-8, SCIENCE, PT

                  SUB -  SCIENCE                CLASS 8               MM: 30

 


MCQ’s                                                                                    [5]

1.Yeast is used in the production of

a). Sugar                             b). alcohol

c). Hydrochloric acid           d). Oxygen

2.The following is an antibiotic

a). Sodium bicarbonate            b). Streptomycin

c). Alcohol                                  d). Yeast

3.Carrier of malaria causing protozoan

a). Anopheles                    b). Cockroach

c). housefly                        d). butterfly

4.The process of conversion of sugar into alcohol is called

a). nitrogen fixation         b). Moulding

c). fermentation               d). infection

5.The bread or idli dough rises because of

a). ant                                   b). heat

c). growth of yeast cells    d). kneading

 

FILL IN THE BLANKS                                                      [5]

1.Alcohol is produced with the help of ___________

2.Cholera is caused by ________

3.Blue green algae fix ________ to enhance the fertility of soil.

4.The first step before growing crops is ________ of the soil.

5.Damaged seeds would _________ on the surface of water.

MATCH THE COLUMN                                                           [5]

     i.        Bacteria                              fixing nitrogen

   ii.        Rhizobium                          setting of curd

  iii.        Lactobacillus                      baking of bread

 iv.        Yeast                                  causing malaria

   v.        A protozoan                        causing cholera

TRUE OR FALSE                                                                       [5]

1.Separation of grains from the chaff is called ginning.

2.Harvesting is the cutting of immature crops.

3.Winnowing is a step of cultivating crops.

4.Blue green algae fixes phosphorous to the plants.

5.Providing water to crops is called irrigation.

 

SHORT ANSWER TYPE QUESTIONS                      [2 marks each]

1.What are weeds?

2.Give two examples each of kharif and rabi crops?

3.write few lines about threshing?

4.Give four examples of common preservatives used at home?

5.What are antibiotics?