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

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