Earth Moon and the Sun Class 7 Short Question Answer

Earth Moon and the Sun Class 7 Short Question Answer

Earth Moon and the Sun Class 7 Short Question Answer

Question 1.

Explain why lunar eclipses can be seen from a larger part of the Earth compared to solar eclipses.

Answer:

Lunar eclipses can be observed from anywhere on the night side of Earth, while solar eclipses are only visible in a narrow path where the Moon's shadow falls.

Question 2.

What would happen to the seasons if the Earth's axis were not tilted?

Answer:

If the Earth's axis were not tilted, there would be no seasonal changes; every location would experience nearly the same climate year-round.

Question 3.

Describe how the Big Dipper appears to move in the sky over time.

Answer:

As the Earth rotates, the Big Dipper appears to move around the Pole Star, creating a circular motion in the night sky.

Question 4.

Why can the Moon completely block the Sun during a total solar eclipse despite being much smaller?

Answer:

The Moon can block the Sun due to its proximity to Earth, making it appear the same size as the Sun in the sky.

Question 5.

How does the Earth's rotation affect the visibility of stars in the night sky?

Answer:

The Earth's rotation causes stars to appear to move across the sky, creating the illusion of their motion as the Earth spins from west to east.

Question 6.

What causes a solar eclipse, and how does it differ from a lunar eclipse?

Answer:

A solar eclipse occurs when the Moon passes between the Earth and the Sun, blocking sunlight. In contrast, a lunar eclipse happens when the Earth blocks sunlight from reaching the Moon, casting a shadow on it.