Sun Test Review
How much bigger in diameter is the sun than the earth?
100 bigger in diameter
How long does it take for the sun to rotate once?
25 days
How hot is the center of the sun?
25 million degrees
How far is the sun from the earth?
93,000,000 miles
What kind of star is the sun?
A yellow dwarf
What layer of the sun is red?
Chromosphere
What are the 2 parts of the sun's atmosphere?
Chromosphere and corona
Name the 4 layers of the sun, starting with the inside layer.
Core, photosphere, chromosphere, and corona
What is the hottest part of the sun's atmosphere?
Corona
What are giant explosions shooting out from the sun called?
Flares
What two elements is the sun mostly made of?
Hydrogen and helium
What is the invisible magnetic bubble that surrounds earth and protects us from the dangerous radiation from the sun?
Magnetosphere
What layer of the sun do we see from the earth?
Photosphere
What layer of the sun is the surface?
Photosphere
What are giant loops of gas from the sun called?
Prominences
What do we call the stream of particles from the corona that blow out the sun past all the planets?
Solar wind
What are the dark patches on the surface of the sun?
Sunspots
What is the difference between the Aurora Borealis and the Aurora Australis?
The Aurora Borealis is near the North Pole. Aurora Australis is near the South Pole
What is the heliosphere?
The area that is influenced by the sun (by it's heat and gravity)
What is the heliopause?
The outer limit of the heliosphere (sun's influence ends)
What causes an eclipse of the sun?
The sun gets between the sun and the earth and casts a shadow on the earth
