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g8 2.3
8th grade STEMscopes CA Segment 2 Scope 3
Term | Definition |
---|---|
Big Bang Theory | A theory that says the universe began as a small point that expanded rapidly about 13.7 billion years ago |
Dust | Tiny particles of matter floating in space; condense under gravity to form stars and planets |
Galaxy | A large grouping of stars in space |
Gas | A state of matter with indefinite volume and shape |
Gravity | The force that causes objects with mass to attract one another |
Solar system | A star and the group of planets and other celestial bodies that are held by its gravitational attraction and revolve around it |