Test: Earth, Moon, and the Sun - Class 7 MCQ

The movement of the Sun, Moon, and stars across the sky is caused by the rotation of the Earth on its axis. As Earth rotates, it creates the illusion that celestial objects are moving.

Earth takes 365 days and 6 hours to complete its orbit around the Sun. Every 4 years, we add a leap day to make up for the extra 6 hours, creating a 366-day year.

On the spring equinox, which happens around March 21, day and night are nearly equal in length, lasting about 12 hours each. This happens because the Sun is directly above the equator.

Looking directly at a solar eclipse can damage your eyes permanently, even though the Sun is partially covered by the Moon. Always use proper viewing tools like special glasses.

A solar eclipse happens when the Moon moves between the Earth and the Sun, blocking sunlight from reaching certain parts of Earth.

The Earth’s rotation on its axis creates the cycle of day and night. As Earth spins, different parts of the planet move into and out of sunlight, causing day and night.

Celestial movements are important in traditional societies for predicting weather, guiding religious practices, and organizing timekeeping systems, such as calendars.

The tilt of Earth's axis causes different parts of the Earth to receive varying amounts of sunlight throughout the year, which leads to the changing seasons.

A lunar eclipse occurs when the Earth comes between the Sun and the Moon, blocking the sunlight and casting a shadow on the Moon. This results in the Moon appearing dark or reddish.

Ancient astronomers observed the movement of the Sun and Moon and created calendars to track time, helping with agricultural planning and religious festivals.

Day and night are caused by the Earth rotating on its axis, which takes about 24 hours to complete one full rotation.

The tilt of the Earth's axis means different areas receive more or less sunlight at different times of the year, creating summer and winter in different parts of the world.

A solar eclipse occurs when the Moon moves directly between the Earth and the Sun, blocking the Sun’s light from reaching the Earth.

A lunar eclipse happens when the Earth blocks sunlight from reaching the Moon, casting a shadow on the Moon.

Solstices and equinoxes mark important points in Earth’s orbit. The equinoxes, when day and night are equal, happen around March 21 and September 23. Solstices mark the longest or shortest days of the year.