These were considered by scientists to be wandering stars until they were later identified as
What are the planets?
100
The sun is a giant one of these
What is a Star?
100
The Second Planet from the sun
What is Venus
100
The outer planets are known as
What are Gas Giants?
100
These objects are found between the orbits of Mars and Jupiter but are too small to be called planets
What are Asteroids?
200
Kepler discovered that the orbit of each planet is an elongated circle known as
What is an Ellipse?
200
The inside center of the sun is know as
What is the Core?
200
The trapping of heat from the atmosphere is called
What is the Greenhouse Effect?
200
This planet is the largest of the planets
What is Jupiter?
200
These objects are chunks of ice and dust whose orbits are very long, narrow ellipse. Also known as dirt snowballs
What are Comets?
300
The sun is at the center of the universe in this model
What is Heliocentric?
300
These are areas of gas on the sun that are cooler than the gases around them
What are Sunspots?
300
This planet is known as the rising star when it rises before the sun and then isn't able to be seen during the day because it is so close to the sun
What is Venus?
300
This planet is tilted 90 degrees and therefore rotates top to bottom rather than side to side
What is Uranus?
300
This is the name of an object while still in space that is a chunk of rock or dust in space
What are Meteoroids?
400
The Earth is at the center of the universe in this model
What is Geocentric?
400
This is the process in which the sun's energy comes from
What is Nuclear Fusion?
400
The four inner planets are small and have rocky surfaces and are also known as
What are the Terrestrial Planets?
400
This moon of Jupiter may have water under it's icy crust
What is Europa?
400
This is what an object is called when it enters Earth's atmosphere and frictions make it burn up and produce a streak of light in the sky also known as a shooting star
What is a Meteor?
500
A moving object will continue moving or a still object will remain still unless a force acts on it is known as
What is Inertia?
500
These are the three layers of the sun's atmosphere
What are the Photosphere, Chromosphere, and Corona?
500
Venus rotates backwards compared to all other planets. This rotation is known as
What is Retrograde Rotation?
500
Which planet takes 248 Earth years to revolve around the sun
What is Neptune?
500
When a meteoroid passes through the atmosphere and hits Earth's surface it is called this.