Activity 12.1 Let us explore (Page 170) While you are sitting on the moving merry go round look around you. Class 7

Activity 12.1 Let us explore (Page 170) Class 7

Activity 12.1 Let us explore (Page 170) Class 7

Question 1.

While you are sitting on the moving merry-go-round, look around you. Do the objects around you appear to be moving? In which direction do they appear to be moving?

Answer:

While we turn in the anti-clockwise direction, the objects appear to turn around us in the opposite direction, that is, in the clockwise direction.

Question 2.

In which direction do you find the tree turning around you? Is it in your view all the time? Class 7

Answer:

The tree appears to turn around us in the opposite direction, that is, the clockwise direction. The tree appears in our view from our left-hand side and then moves out of our view on the right-hand side when we view it from a merry-go-round turning around in anticlockwise direction.

Question 3.

Does it indicate that the Sun is moving in the sky? Or might it be that the Earth itself is turning around and the Sun just appears to move? Class 7

Answer:

The Sun appears to be moving because we view it from the Earth, which is turning around itself.

Question 4.

In which way is the Earth turning around itself? Class 7

Answer:

When viewed from the top of the North Pole (Fig. 12.3) (See in your textbook), the Earth is rotating in the anti-clockwise direction, that is, from West to East.

Observation and Conclusion: Earth spins (or rotates) on its own axis in space

The Earth's axis of rotation passes through its geographic North Pole and the South Pole. The Earth completes one rotation in about 24 hours.