Exploring Galaxy Types
A Grade 7 science worksheet to identify and differentiate between various galaxy types, including spiral, elliptical, and irregular galaxies.
Includes
Standards
Topics
Exploring Galaxy Types
Name:
Date:
Score:
Read each question carefully and answer to the best of your ability. Refer to the provided image as needed.
1. What is the most common type of galaxy in the universe?
Elliptical
Spiral
Irregular
Lenticular
2. Which type of galaxy is characterized by a central bulge and arms that spiral outwards?
Elliptical
Irregular
Spiral
Barred Spiral
Observe the image below showing different galaxy types.
3. Galaxies are vast collections of stars, gas, dust, and held together by gravity.
4. The Milky Way is an example of a galaxy.
5. galaxies have no distinct regular shape and are often the result of galactic collisions.
6. Elliptical galaxies are typically made up of older stars and have very little gas and dust.
True
False
7. Irregular galaxies are the largest and oldest type of galaxy.
True
False
Match each galaxy type with its description:
8. Spiral Galaxy
a. Oval or sphere-shaped, mostly older stars
9. Elliptical Galaxy
b. Contains a central bulge and rotating arms of stars
10. Irregular Galaxy
c. No defined shape, often rich in gas and dust, forming new stars
11. Describe one key difference between a spiral galaxy and an elliptical galaxy.