Gr.3:EVS:CH-14(NB)

                 Chapter 14

      Movements of the Earth

Q-1] Choose the correct options;

A] The revolution of the earth causes _________.

i] Day

ii] Night

iii] Seasons

iv]Midnight

Ans-A] Seasons

B] How many days are there in a leap year?

i] 377

ii]366

iii]367

iv] 369

Ans-B] 366

C] The time that the earth takes to move around the sun is known as a ___________.

i] Solar week

ii] Solar day

iii] Solar year

iv] Solar month

Ans-C] Solar year

Q-2]Fill in the blanks.

A] The earth rotates from west to east.

B] A leap year comes after every four years.

C] The earth spins on its axis .

Q-3] Match the columns.

A] Rotation   -------  24 hours   

B] Orbit      ------   Elliptical path of the earth

C] Revolution ------ 365 and 1⁄4 days

D] Axis       -------- Imaginary line around 

                             which the earth spins.

Q-4] Answer the following questions.

Q-A]What is rotation?

Ans-A]The spinning movement of the Earth on its own axis is called rotation.

Q-B]Explain how a leap year has 366 days.

Ans-B] Every fourth year we have an extra day which is added in month of February. As a result, every fourth year, February has 29 days.  Such a year with 366 days is known as a leap year. 

 

Q-C]What causes day and night?

Ans-C]The rotation of the earth On its axis gives rise to day and night.

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