Grade 7 : Science (Curiosity) - 12. Earth, Moon, Sun (Set 1)

Question 1

What is the spinning motion of the Earth on its own axis called?

Accepted Answer

C) Rotation

Answer

A) Revolution

Answer

B) Orbit

Answer

D) Translation

Question 2

How long does it take for the Earth to complete one full revolution around the Sun?

Accepted Answer

C) 365.25 days

Answer

A) 24 hours

Answer

B) 28 days

Answer

D) 12 months

Question 3

Which phase of the Moon occurs when the entire side of the Moon facing Earth is illuminated by the Sun?

Accepted Answer

D) Full Moon

Answer

A) New Moon

Answer

B) Quarter Moon

Answer

C) Crescent Moon

Question 4

What phenomenon is directly caused by the Earth's continuous rotation on its axis?

Accepted Answer

C) Day and night

Answer

A) Seasons

Answer

B) Years

Answer

D) Tides

Question 5

The tilt of the Earth's axis as it revolves around the Sun is the primary reason for what?

Accepted Answer

D) Seasons

Answer

A) Lunar eclipses

Answer

B) Solar eclipses

Answer

C) Phases of the Moon

Question 6

Among the Earth, the Moon, and the Sun, which celestial body is the largest in size?

Accepted Answer

C) Sun

Answer

A) Earth

Answer

B) Moon

Answer

D) They are all approximately the same size

Question 7

A lunar eclipse occurs when the Earth passes directly between which two celestial bodies?

Accepted Answer

A) Sun and Moon

Answer

B) Moon and Mars

Answer

C) Sun and Jupiter

Answer

D) Moon and Earth's shadow

Question 8

What astronomical event takes place when the Moon passes directly between the Sun and Earth, casting a shadow on Earth?

Accepted Answer

B) Solar eclipse

Answer

A) Lunar eclipse

Answer

C) Supermoon

Answer

D) Meteor shower

Question 9

The Sun is primarily composed of which two gases?

Accepted Answer

C) Hydrogen and helium

Answer

A) Rock and ice

Answer

B) Water and oxygen

Answer

D) Iron and nickel

Question 10

The Moon's surface is heavily covered with craters. What is the main cause of these craters?

Accepted Answer

C) Impacts from asteroids and comets

Answer

A) Volcanic eruptions

Answer

B) Erosion by wind and water

Answer

D) Tectonic plate movements