Chapter 12 Beyond Earth Worksheet Solutions

Worksheet Solutions: Beyond Earth

Multiple Choice Questions (MCQs)

Q1: What is the main function of stars in ancient navigation?
(a) They provide heat.
(b) They help travelers find their way.
(c) They create light pollution.
(d) They are used for decoration.
Ans: (b) They help travelers find their way.

Q2: Which constellation is known as “The Hunter”?
(a) Canis Major
(b) Orion
(c) Taurus
(d) Ursa Major
Ans: (b) Orion

Q3: What do you call the star that remains in the same position in the night sky?
(a) Sirius
(b) Polaris
(c) Betelgeuse
(d) Vega
Ans: (b) Polaris

Q4: How many official constellations are recognized by the International Astronomical Union (IAU)?
(a) 88
(b) 100
(c) 72
(d) 50
Ans: (a) 88

Q5: What is the closest star to Earth after the Sun?
(a) Alpha Centauri
(b) Proxima Centauri
(c) Sirius
(d) Betelgeuse
Ans: (b) Proxima Centauri

Fill in the Blanks

Q1: The imaginary lines that connect stars to form patterns are called __________.
Ans: constellations

Q2: The __________ is the star at the center of our Solar System.
Ans: Sun

Q3: __________ pollution makes it difficult to see stars in big cities.
Ans: Light

Q4: The __________ is known as the Red Planet.
Ans: Mars

Q5: The __________ takes about 27 days to orbit around the Earth.
Ans: Moon

True or False

Q1: Stars do not emit their own light.
Ans: False

Q2: The Big Dipper is part of the constellation Ursa Major.
Ans: True

Q3: The Milky Way Galaxy contains only our Solar System.
Ans: False

Q4: Asteroids are mostly found between the orbits of Earth and Mars.
Ans: False

Q5: The Sun is the closest star to Earth.
Ans: True

Match the Following

Ans: