Early Theories
Planets
CMA
Our Place
Gravity
100
Geocentric means-
Earth centered
100
Name the closest planet to the Sun.
Mercury
100
What is the name of the galaxy we live in?
Milky Way
100
What do we call a system containing a star and the objects that orbit it?
a solar system
100
Name the force that keeps planets from traveling away from the sun.
gravity
200
What astronomer suggested the heliocentric model?
Copernicus
200
The outer planets are also known as _______ Giants.
Gas
200
What do we call the collection of rocks between the inner and outer planets?
Asteroid Belt
200
What sized star is our sun?
medium
200
Name the force that keeps the planets from being pulled into the sun
Inertia
300
Who described that planets travel around the sun in elliptical orbits?
Kepler
300
What is the smallest planet in our solar system?
Mercury
300
What is the category we use to describe the inner planets?
terrestrial or rocky
300
Where are we located in the Milky Way?
In Orion's Arm, a minor arm
300
The tendency to resist change in motion or rest- describes what?
Inertia
400
What is the theory that explains how the universe started?
The Big Bang Theory
400
Name the largest planet in our solar system.
Jupiter
400
What do comets, meteoroids, and asteroids have in common?
All are made from the same types of materials that created the sun and planets
400
What is the largest category?
universe
400
What would happen if the sun suddenly had no gravity?
The planets would lose their elliptical orbits and travel away in a straight line
500
What evidence do we use to support the Big Bang Theory?
The planets and stars are moving apart
500
Name the planet that is missing from this list:
Mercury, Venus, Earth, Jupiter, Saturn, Uranus, Neptune
Mars
500
Describe the difference between meteoroids, meteors, and meteorites.
Meteoroids- in space
Meteors- in the atmosphere
Meteorites- on the surface of earth
500
Put these in order from smallest to largest-
local group, galaxy, Earth, Virgo Supercluster
Earth, galaxy, local group, Virgo Supercluster
500
Is this image correctly labeled?
Yes