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Study Guide
Science Quiz Thursday December 20th
Know the Following:
Planets
 Know the order of the planets from the sun
Mercury, Venus, Earth, Mars, Jupiter,
Saturn, Uranus, Neptune, Pluto
 Know which planets are terrestrial and which are
gas giants
Terrestrial = Mercury Venus, Earth Mars
Gas Giants = Jupiter, Saturn, Uranus, and
Neptune
 What is the asteroid belt and where is it located?
The asteroid belt is a band of rock and ice
particles that separates the terrestrial planets
from the gas giants (located between Mars
and Jupiter)
 Which planet is the smallest?
Mercury
 Which planet is the largest?
Jupiter
 Which planet is the closest? Which planet is the
farthest from the sun? Closet- Mercury
Farthest- Neptune or Pluto
 What planet is Earth’s twin?
Venus
 What other two planets are considered twins?
Neptune and Uranus
Craters
 What is the relationship between the size of the
object causing the crater and the crater itself?
The larger the object the larger the crater it
will create
 What is the relationship between the height of
the object causing the crater and the crater itself?
The higher the object’s height the deeper the
crater it will create
 What is the relationship between the speed of the
object causing the crater and the crater itself?
The faster the object is traveling the larger
and deeper the crater it will create.
Space Technology
 What was NASA’s first mission?
Mercury
 What was important about the Apollo mission?
We put a man on the moon
 What was Skylab?
It was the first space station. It allowed
people to live and work in space
 What is the job of a space probe?
To gather information from places too
dangerous for humans to go. Probes have
gathered information from the gas giants and
from the sun.
Mass and Weight
 How is mass measured?
Grams and kilograms
 What changes from planet to planet? (mass or
weight)
Weight
 If matter is not added or taken away what doesn’t
change? (mass or weight)
Mass
Gravity
 Define gravity
The force of attraction that draws an object
 What is the difference between mass and weight?
Mass is the amount of material in an object
Weight is the measurement of the force of
gravity on an object
 Define surface gravity
The strength of the gravitational force on the
surface of the earth or another planet.