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What is convection?
Energy is transferred to individual atoms
Rising hot gas moves upward and cooler denser gas sinks to the center
Unit to describe how far away a star is from Earth
Gravity
Convection and radiation
To group stars together
Millions of years
9.5x10^15 m
How are constellations used?
Energy is transferred to individual atoms
Rising hot gas moves upward and cooler denser gas sinks to the center
Unit to describe how far away a star is from Earth
Gravity
Convection and radiation
To group stars together
Millions of years
9.5x10^15 m
Describe radiation
Energy is transferred to individual atoms
Rising hot gas moves upward and cooler denser gas sinks to the center
Unit to describe how far away a star is from Earth
Gravity
Convection and radiation
To group stars together
Millions of years
9.5x10^15 m
How far is a light year?
Energy is transferred to individual atoms
Rising hot gas moves upward and cooler denser gas sinks to the center
Unit to describe how far away a star is from Earth
Gravity
Convection and radiation
To group stars together
Millions of years
9.5x10^15 m
What are stars held together by?
Energy is transferred to individual atoms
Rising hot gas moves upward and cooler denser gas sinks to the center
Unit to describe how far away a star is from Earth
Gravity
Convection and radiation
To group stars together
Millions of years
9.5x10^15 m
What is the definition of a light year?
Energy is transferred to individual atoms
Rising hot gas moves upward and cooler denser gas sinks to the center
Unit to describe how far away a star is from Earth
Gravity
Convection and radiation
To group stars together
Millions of years
9.5x10^15 m
How long does it take energy to move through the layers of stars?
Energy is transferred to individual atoms
Rising hot gas moves upward and cooler denser gas sinks to the center
Unit to describe how far away a star is from Earth
Gravity
Convection and radiation
To group stars together
Millions of years
9.5x10^15 m
By what two methods does energy move through the layers of a star?
Energy is transferred to individual atoms
Rising hot gas moves upward and cooler denser gas sinks to the center
Unit to describe how far away a star is from Earth
Gravity
Convection and radiation
To group stars together
Millions of years
9.5x10^15 m
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