7.1 Vocab Word Scramble
|
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Word | Definition |
Accretion | The process in which particles of rock and dust come together due to gravity to form a larger object |
Binary star system | two stars that orbit a centre of mass |
Black Hole | collapsed star so massive not even light can escape its gravitational feild |
Galaxy | Large group of stars attracted to each other by gravity |
Gravity | The force that causes all matter to collect together |
Light-year | The distance light travels in a year |
Milky Way | The Galaxy in which the Solar System is |
Nebula | Cloud of gas found i empty space between stars; birthplace of new stars |
Nuclear Fusion | The process of hydrogen turning into helium, producing light and heat |
Parallax | A technique used to measure distance to other stars |
Parsec | Astronomical unit of length - 3.26 l.y |
Protoplanetary disk | disk of gas surrounding protostar that will turn into planets |
Protostar | Collapsing cloud of gas that will become a star |
Radiation pressure | Force produced by radiation from pressure caused by heat |
Stellar Parallax | apparent change of position of a star due to earth's rotation around the sun |
Supermassive Black Hole | Black hole millions or billions times the mass of our sun found at the centre of galaxies. |
Created by:
from01
Popular Science sets