Vocabulary
The Sun
Stars
Galaxies
Meteors
100
What is a planet?
A large body that orbits the sun
100
Name the five layers of the sun
Corona, Chromosphere, Photosphere, Interior and core
100
What is a star?
Large hot ball of gas, held together by gravity
100
What is a galaxy?
Large group of stars held together by gravity
100
What is a meteoroid?
Small asteroids.
200
What is the solar system?
Stars, the sun, and all other bodies that orbit it.
200
What is the corona?
Outermost part of the sun. Only visible in a solar eclipse
200
What is a constellation?
A group of stars that form a pattern in the sky.
200
How may stars are in a galaxy?
around 200 billion stars
200
What is a meteor?
A meteoroid that has entered the Earth's atmosphere.
300
Define Nebula
A cloud of gas that is the beginning of a star
300
What is the core?
The middle of the sun. It is the source of all the sun's energy and is about the size of Jupiter!
300
What is the relationship among a stars color and its temperature?
Red stars are the coolest (3,000 degrees) and blue stars are the hottest (20,000 degrees)
300
What are the three types of galxies?
spiral, elliptical and irregular
300
Waht is a meteorite?
After a meteor has burned, anything that hits the Earth's surface.
400
What is the difference between a supernova and a black hole?
Supernova is when a star explodes. If the newly created star's core collapses, then it is a black hole. A black hole is a continuation of a supernova
400
What is the chromosphere?
second layer of the sun. Appears pinkish and can only be seen during a solar eclipse.
400
What does magnitude mean?
How bright a star is.
400
What is a spiral galaxy?
Tightly wound galaxy with a lot of dust in their spiral.
500
What is the photosphere?
The "surface" of the sun. Makes the sun a yellow star, and the temperatures can reach up to 6,000 degrees celcius.
500
What three things determine a stars magnitude?
distance from Earth, temperature and size
500
What is an elliptical galaxy?
A football or basketball shaped galaxy. No spirals and little to no dust
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