1
This planet has water systems that help create an environment to sustain life
Earth
The largest planet is
Jupiter
This planet is the smallest and closest to the sun
What is Mercury?
A planets path around the sun is called its __________
Orbit
A planet revolves around the Sun once every _____ .
year
Jupiter and Saturn are considered _________ ___________
gas giants
What are the planets closest to the sun called
Inner planets
Which planet is smaller and colder than Earth?
Mars
This is what causes the seasons on Earth.
The tilt of the Earth's axis
These are giant blue-green gas balls
Uranus and Neptune
How many planets revolve around the sun?
9 planets
This planet is named after the Roman god of war.
Mars
This planet has the Greenhouse Effect.
Venus
This is what holds the planets all in their orbits.
The Sun's gravity
A planet rotates once around its axis every _____ .
day (and night)
The hottest planet is
Venus
Which planet is the seventh planet from the sun?
Uranus
This is the center of the Solar system
What is the Sun?
This is what causes the tides on Earth.
The Moon's gravity
Which planet is considered a dwarf planet?
Pluto
Name the inner planets
Mercury, Venus, Earth and Mars
This is the outer most planet and one of the coldest
Neptune
Another name for the inner planets is the ______ .
terrestrials
An invisible line around which a planet rotates is called its ______ .
axis
Which planets are considered the gas giants?
Saturn, Jupiter, Uranus and Neptune