Here are the matches between the Galaxy terms from Column A with their definitions in Column B:
- When a large star Explodes, it is called a ______: n. Supernova
- A cloud of gas that is present both at the birth and death of a star: c. Nebula
- Dark matter, stars, dust and gas all make up a _____: o. Galaxy
- The #1 force that holds a galaxy together: s. Gravity
- Waves of energy given off throughout space: l. Electromagnetic waves
- A vacuum at the center of a Galaxy: g. Black Hole
- Galaxies gather in ________ to form the universe: q. Groups & Clusters
- Galaxy that is flat, with older stars and not much gas/dust: k. Elliptical Galaxy
- Most common Galaxy that is coiled, with newer stars on its "arms" and a moderate amount of gas/dust: h. Spiral Galaxy
- Galaxy that is smaller and younger, not well formed, and has a lot of gas/dust: e. Irregular Galaxy
- During the formation of a black hole, the core of a star collapses into one super dense point called a _______: b. Singularity
- The area around a black hole where light and matter cannot exit is called the _______: a. Event horizon
- 5% of the universe is this type of "ordinary matter" made up of atoms: t. Baryonic matter
- 25% of the universe is made up of this atypical matter that does not interact with radioactive energy but clearly has gravitational pull: i. Dark Matter
- 70% of the universe is made up of this dynamic (but mostly unexplained) energy: p. Dark energy
- Radiation that was left over since the beginning of the Universe: j. Cosmic Microwave background
- Model of Galaxy formation where a gas cloud collapses and then stars are made (all the same age stars): f. Inside-out model
- Model of Galaxy formation where smaller building blocks combined through gravitational forces to build a galaxy: d. Outside-in model
- A gradual change of a galaxy's size, shape and composition: m. Evolution
- The technology that allows us to study black holes: r. Radio Telescope
Please verify the matches based on your own study materials or the context in which you need them!