Chapter 14: Investigating Space - Science For Grade 7(Science ) Questions and Answers

Question 1. In a reflecting telescope, a large concave mirror bounces all the light coming through the
  1.    sky
  2.    sun
  3.    telescope barrel
  4.    telescope tip
Explanation:-
Answer: Option C. -> telescope barrel
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 2. The world's largest telescope is situated in
  1.    Western Australia
  2.    Russia
  3.    China
  4.    Puerto Rico
Explanation:-
Answer: Option D. -> Puerto Rico
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3. The world's largest reflecting telescope is situated in
  1.    Maldives
  2.    Canary Islands
  3.    Cyprus
  4.    Denmark
Explanation:-
Answer: Option B. -> Canary Islands
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 4. Name of the American space probe is
  1.    Ulysses
  2.    Helios A
  3.    Helios B
  4.    Genesis
Explanation:-
Answer: Option A. -> Ulysses
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 5. Red supergiants are
  1.    cooler
  2.    hotter
  3.    normal
  4.    hot or cold
Explanation:-
Answer: Option A. -> cooler
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 6. If a large star with a mass more than that of sun dies, its core collapses so quickly that it could
  1.    explode
  2.    vanish
  3.    form a new star
  4.    form a galaxy due to explosion
Explanation:-
Answer: Option A. -> explode
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 7. Unfortunately, Ulysses' orbit is taking it more further away from the
  1.    Moon
  2.    Mars
  3.    Sun
  4.    Earth
Explanation:-
Answer: Option D. -> Earth
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 8. After the drainage of center, the sun will start to
  1.    cool down
  2.    heat up
  3.    grow bigger
  4.    shrink
Explanation:-
Answer: Option A. -> cool down
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 9. Hubble telescope is powered by
  1.    one small solar panel
  2.    two small solar panels
  3.    one large solar panel
  4.    two large solar panels
Explanation:-
Answer: Option D. -> two large solar panels
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 10. To date, the most common type of galaxies found in universe, are
  1.    spiral galaxy
  2.    elliptical galaxy
  3.    peculiar galaxy
  4.    none of above
Explanation:-
Answer: Option B. -> elliptical galaxy
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
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