Science Quiz / Ch 4 Stars, Galaxies, and the Universe

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QUIZ: Can you name the Ch 4 Stars, Galaxies, and the Universe Key Terms?

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DefinitionTerm
A contracting cloud of gas and dust with enough mass to form a star
Very large groupings of stars
When the dim star blocks light from the bright star in a binary star
Type of galaxy with a bulge in the middle and arms that spiral outward
An object with gravity so strong that nothing, not even light, can escape
Group of two or more stars
The diagonal area of stars on the Hertzsprung-Russell diagram
Astronomer who stated that the farther away a galaxy is, the faster it is moving away from us (last name only)
Small asteroid-like and comet-like bodies that collided to form the planets
Type of galaxy that does not have a regular shape
Which stars live longer lives: high mass stars or low mass stars?
Do neutron stars form from high mass stars or low mass stars?
If a star is red, is it hot or cool?
Leftover thermal (heat) energy from the big bang
Do black holes form from high mass stars or low mass stars?
Do supergiants form from high mass stars or low mass stars?
True or false: Our sun is a medium-sized star.
Do red giants form from high mass stars or low mass stars?
A protostar becomes a star when _________ begins.
Large cloud of gas and dust from which stars form
If a star is blue, is it hot or cool?
Do supernovas form from high mass stars or low mass stars?
DefinitionTerm
Matter that does not give off electromagnetic radiation
The blue-white core of a star that is left behind and cools becomes a ________.
The explosion of a supergiant
Large cloud of gas and dust that formed our solar system
Star systems that have two stars
The brightness of a star depends upon both its size and ___________.
Explosion that created our universe
Type of galaxy that is shaped like a stretched out ball
True or false: The universe is about 13.7 billion years old.
Brightness as seen from Earth
Do white dwarves form from high mass stars or low mass stars?
The galaxy that our solar system is located in
Does a planetary nebula form from high mass stars or low mass stars?
The apparent change in position of an object when you look at it from different places.
Huge group of single stars, star systems, star clusters, dust, and gas bound together by gravity
Type of star cluster that is loosely packed with only a few thousand stars
How long a star lives depends on its _______.
Scientific notation uses powers of this number to write very large or very small numbers
Unknown force that is causing the universe to expand
The distance that light travels in one year
Type of star cluster that is tightly packed with over a million stars
Brightess as seen from the same distance (actual brightness)

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