Astronomy Chapter 3 Lesson 2:The Sun
Terms in this set (20)
A chunk of rock or dust in space
The central region of the sun, where nuclear fusion takes place
The process by which hydrogen atoms join together to form helium, releasing energy
A region of very tightly packed gas in the sun's interior where energy is transferred mainly in the form of light
The outermost layer of the sun's interior
The inner layer of the sun's atmosphere that gives off its visible light
The middle layer of the sun's atmosphere
Streams of electrically charged particles are called _______.
A dark area of gas on the sun's surface that is cooler than surrounding gases.
A huge, reddish loop of gas that protrudes from the sun's surface, linking parts of sunspot regions.
An eruption of gas from the sun's surface that occurs when the loops in sunspot regions suddenly connect
The outer layer of the sun's atmosphere.
List the (3) layers of the sun's interior, starting from the center
core , radiation zone , convection zone
Where is the sun's energy produced?
Most of the sun's energy comes from its radiation zone
Compare how energy moves through the radiation zone and the convection zone
In the convection zone, energy moves in circles.Energy
in the radiation zone moves through space.
What (3) layers make up the sun's atmosphere
corona , chromosphere , photosphere
Why is it usually impossible to see the sun's corona from earth?
Our eyes weren't made to look strait into the sun
which of the sun's layers produces its visible light?
describe three (3) features found on or just above the sun's surface
prominence , solar flare , sunspots
Why do sunspots look darker than the rest of the sun's photosphere?
the surface of the sunspot is cooler than the surrounding gases
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