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100
the center of something
What is a nucleus?
100
motion that is caused by the sun
What is solar wind?
100
the genre of this story is true and tells facts
What is expository nonfiction?
100
an analogy that is used of what a comet looks like in the sky
What is a flaming ball?
200
tiny pieces of objects
What is a particle?
200
contains a gas tail, a dust tail, and has a nucleus
What is a comet?
200
this is similar to a fluorescent light bulb in a comet
What is the coma?
200
scientists believe this is past the farthest planet, which is pluto.
What is a cloud of comets?
300
a range of motion that goes around and around in a circle or oval
What are loops?
300
size of pebbles. When it hits earth, it causes heat and light to occur.
What is a meteor?
300
this is formed when a comet's smallest rocks are pulled into Earth's gravity
What is a meteor?
300
this is called a flying rock.
What is an asteroid?
400
a strong motion, or energy
What is force?
400
these people are scientists that study the atmosphere involving the planets and stars.
What is an astronomer?
400
this is an orbit that occurs when a comet goes into a loop around the sun
What is an ellipse?
400
a comet begins with this component
What is frozen gas?
500
a bright and glowing object
What is fluorescent?
500
this connects the sun and solar system together
What is gravity?
500
This in the sky back years ago was considered to be a warning of something bad occuring when seen in the sky
What is a comet?