Ch 4 Stars, Galaxies, and the Universe

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

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

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