Historical Theories
Which model includes the Earth in the center of the Universe?
What is the name of our galaxy?
Milky Way Galaxy
Which is the hottest planet?
Venus
What is the name of path planets move on?
Orbit
Meteoroids that land on Earth are called____.
Meteorites
Which theory was created in 1543 by Copernicus?
Heliocentric
What is a galaxy?
A cluster of stars held together by gravity.
The outer planets are also called...
Gas giants
gravitational pull
Most asteroids are located between...
Mars and Jupiter
What model could be used to describe the big bang theory? Why?
Balloon model or raisin bread model because it shows the universe is still expanding today.
Which type of galaxy is our galaxy?
Spiral
Starting from the Sun, name the planets in order.
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
Without the Sun, the planets would travel in a straight line, this is called___________.
inertia
I am large and rocky with metals. Which celestial object am I?
Asteroid
Scholars were discussing historical theories and a scholar said, "_______ is when planets revolve around the Sun."
What is the blank and why?
What are the three types of galaxies?
Spiral, Elliptical, and Irregular
What is the difference between the outer and inner planets?
Which two forces keep the planets moving in orbit?
Gravity and inertia
What do comets, meteors, and asteroids have in common?
Remnants of the solar system
What is the big bang theory?
The big bang theory is the theory that the Universe began with the explosion of a singularity 14 billion years ago and is still expanding today.
Draw a diagram of the milky way galaxy and where our solar system is located.
Answers Vary.
How is Saturn different from the Earth?
Earth is a terrestrial planets and Saturn is a gaseous planet.
Gravity holds the planets in place and inertia keeps the planets moving.
I have a long tail and an elliptical orbit around the Sun. Which celestial object am I?
Comet