Galactic bulge

High school (ages 12+)
Space & Astronomy

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/galactic-bulge

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the galactic component?Central, dense, spheroidal or boxy/peanut-shaped concentration of stars in spiral galaxies
2. Why does the Milky Way’s bulge look boxy or peanut‑shaped?Because stars and gas moved up and sideways from the galaxy’s bar, making the bulge bend and buckle.
3. Are there old and young stars in the bulge?Yes, most stars are older red giants, but there are also younger, metal‑poor stars, especially near the center.

Stellar Density: The number of stars per unit volume in a given region of space.
Secular Evolution: Gradual changes in a galaxy's structure and properties over long timescales, driven by internal processes.
Gravitational Potential: The amount of work needed to move a unit of mass from a reference point to a specific location in a gravitational field.