A black hole is literally a hole in space.
Black holes form when massive stars collapse at the end of their lives.
Black holes actively hunt down and suck in everything around them like a vacuum cleaner.
The center of our Milky Way galaxy contains a supermassive black hole called Sagittarius A*
Scientists can take direct photographs of black holes.
Time moves more slowly near black holes compared to Earth.
Black holes can be used as reliable time machines for space travel.
The boundary of a black hole where nothing can escape, not even light, is called the event horizon.
Label the parts of a black hole.

accretion disk
You can watch this video until Mrs. Winer has chance to film a demo: https://www.youtube.com/watch?v=pcOxhdu5gh8
How did the size change?
How did the mass change?
What did each part of the demo represent?
| Draggable item | arrow_right_alt | Corresponding Item |
|---|---|---|
Squeezing hands | arrow_right_alt | star |
Balloon | arrow_right_alt | outer layers of the star |
Foil layers | arrow_right_alt | gravity |