The Universe
Galaxies
The Solar System
The Terestrial Planets
The Gas Giants
100
In a heliocentric system, Earth revolves around the _____.
What is the sun?
100
What is the name of the galaxy we live in?
What is the Milky Way?
100
The solar system consists of the sun, several kinds of smaller objects such as comets and asteroids, and ______ planets and their moons.
What is the eight planets and their moons?
100
The 3rd planet from the sun?
What is Earth?
100
What is distinctive about Jupiter?
What is it is the largest and most massive planet?
200
The theory that astronomers have developed to describe the formation of the universe is called the _____.
What is the big bang?
200
The Milky Way galaxy is an example of a(an) _______ galaxy.
What is spiral?
200
Planets don’t go flying off into space because ______.
What is the planets have very strong gravitational pulls?
200
The smallest terrestrial planet?
What is Mercury?
200
Neptune is very similar in size and color to what other planet?
What is Uranus?
300
A light-year is a ______.
What is the distance light travels in a year?
300
Where is our solar system within the Milky Way Galaxy?
What is on one of the arms?
300
The asteroid belt is located
What is between Mars and Jupiter?
300
Venus and Earth are much alike in terms of
What is their size and density?
300
Which planet is tilted 90 degrees on its axis?
What is Uranus?
400
The force that tends to pull together the matter in stars is _______.
What is gravity?
400
Our galaxy is part of what Galactic Cluster?
What is the Local Group of Galaxies?
400
Which body is now classified as a dwarf planet?
What is Pluto?
400
The terestrial planets in their order from the sun.
What is Mercury, Venus, Earth. and Mars?
400
What do the first four outer planets have in common?
What is they are much larger than Earth Have rings, and are made mainly of hydrogen and helium?
500
The heliocentric system gained support when Galileo observed that _____ had phases similar to the Earth's moon.
What is Venus goes through phases similar to those of Earth's moon?
500
What Super Cluster do we live in?
What is the Virgo Super Cluster?
500
What planetary object always has its frozen tail pointing away from the sun?
What is a comet?
500
What do all of the inner planets have in common?
What is they all are small and have rocky surfaces?
500
What gas gives Uranus and Neptune their blue color?
What is methane?
M
e
n
u