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CBSE VII - Science Solved Questions

Question 1

Two identical containers are filled with equal amount of water and are kept under the sun (same temperature).
One container is covered with black cloth and the other is covered with pink cloth. After 5 hours the water of container covered with black cloth was at higher temperature than another. This was because black cloth is a good absorber of heat than any other colour.

A) True
B) False

Question 2

During the thunderstorm one should not think of the shifting arrangement for household goods, domestic animals and vehicles etc to any place.
A) True
B) False

Question 3

Distance travelled by a car and the time taken by it to cover that distance is shown in the table. Which of the following graph is correctly depicting the information of the table?

A) fig 8_1

B) fig 8_2

C) fig 8_3

D) fig 8_4


Question 4

When an electric current passes through a wire, magnetic field is developed around it. This phenomenon is called the ____.
A) electric effect of electric current
B) electric effect of magnetic field
C) heating effect of electric current
D) magnetic effect of electric current

Question 5

A band of seven colours obtained on screen, after reflection from a prism, is known as a spectrum.
A) True
B) False

Question 6

Wool obtained from the nali breed of sheep is used in the manufacture of ____.
A) wall pieces
B) door curtains
C) carpets
D) bed sheets

Question 7

Which of the following compounds is present in a calamine solution?
A) Sodium hydrogen carbonate
B) Zinc sulphate
C) Zinc carbonate
D) Sodium carbonate

Question 8

Rust formation by iron is a physical change as there is a change in the physical appearance of iron.
A) True
B) False

Question 9

The number of times a person breathes in a minute is termed as the ____.
A) breathing rate
B) inhalation rate
C) respiration rate
D) exhalation rate

Question 10

Which of the following excretory structures in humans is present in pairs?
A) Kidney and urinary bladder
B) Ureter and urinary bladder
C) Ureter and urethera
D) Kidney and ureter

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