Worksheet Solutions: The Planet Earth | Footprints Class 6: Book Solutions, Notes & Worksheets PDF Download

Q1: Multiple Choice Questions (MCQs)

(i) The Big Bang theory explains:
(a) The formation of galaxies
(b) The birth of our universe
(c) The creation of the solar system
(d) The origin of life on Earth
Ans: (b)
The Big Bang theory explains what happened about 15 billion years ago when our universe was born.

(ii) What makes Venus the hottest planet in the solar system?
(a) Its proximity to the Sun
(b) Its thick atmosphere trapping heat
(c) Its large size
(d) Its volcanic activity
Ans: (b)
Venus is the hottest planet because its thick atmosphere traps the Sun's heat.

(iii) Which planet is known as the Red Planet?
(a) Jupiter
(b) Mars
(c) Mercury
(d) Saturn
Ans: (b)
Mars is often referred to as the Red Planet because of its reddish appearance.

(iv) What is the main source of light and heat for our entire solar system?
(a) Earth
(b) Moon
(c) Sun
(d) Venus
Ans: (c)
The Sun is the primary source of light and heat for our solar system.

(v) How do planets differ from stars in terms of their light production?
(a) Planets produce their own light.
(b) Stars do not have light.
(c) Planets reflect the light they receive from the Sun.
(d) Stars have no light of their own.
Ans: (c)
Unlike stars, planets do not produce their own light; they reflect the Sun's light.

Q2: Fill in the Blanks

(i) Human-made satellites are launched into space for purposes such as __________, __________, and __________.

Ans: weather study, telecommunications, and mapping.

(ii) The Moon takes about _______ days to revolve around the Earth.
Ans: 28 days

(iii) Comets are objects made of ________ and ________ held together by ________ particles.
Ans: dust, gas, ice.

Q3: True or False

(i) The Earth is the third nearest planet to the Sun.
Ans: False. 

(ii) The period when the Moon becomes smaller is known as waxing.
Ans: False. 

(iii) Jupiter is the largest planet in the solar system.
Ans: True.

(iv) Venus is the hottest planet.
Ans: True.

(v) The Moon takes about 30 days to revolve around the Earth.
Ans: False.