Let's solve each question step by step:
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Q.4: Label the three main types of galaxies.
The image shows three different galaxy types, which are the
three main classifications of galaxies based on their shape and structure, as defined by Edwin Hubble in the Hubble sequence.
From left to right:
1.
First image (spiral arms, central bulge):
→ This is a
Spiral Galaxy.
Example: The Milky Way.
2.
Second image (elliptical, no clear structure or arms):
→ This is an
Elliptical Galaxy.
These galaxies are more spherical or oval-shaped and have less gas and dust.
3.
Third image (irregular, no defined shape):
→ This is an
Irregular Galaxy.
These lack a regular structure and are often the result of galactic collisions.
✔ So, the labels should be:
-
Left: Spiral Galaxy
-
Middle: Elliptical Galaxy
-
Right: Irregular Galaxy
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Q.5: What is the name of our galaxy?
Our galaxy is the
Milky Way.
-
a) Andromeda – A nearby spiral galaxy, but not ours.
-
b) Black Eye – A nickname for a specific galaxy (M64), not our galaxy.
-
c) Cartwheel – An irregular galaxy formed from a collision.
-
d) Milky Way ✔ – Correct answer.
✔ Answer: d) Milky Way
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Q.6: Which is the nearest star to planet Earth?
Let’s analyze the options:
-
a) The Moon – Not a star; it's Earth's natural satellite.
-
b) Mars – A planet, not a star.
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c) The Sun ✔ – It is a star and the closest star to Earth.
-
d) Venus – Also a planet.
Even though the Sun is much closer than any other star (the next nearest star is Proxima Centauri, about 4.24 light-years away), the Sun is still classified as a star.
✔ Answer: c) The Sun
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✔ Final Answers:
Q.4:
- Left:
Spiral Galaxy
- Middle:
Elliptical Galaxy
- Right:
Irregular Galaxy
Q.5: d) Milky Way
Q.6: c) The Sun
Parent Tip: Review the logic above to help your child master the concept of stars and galaxies worksheet.
