What is Space?
What is a celestial body? Give one example.
A natural object in space (planet, moon, star, asteroid, comet).
How high above Earth is the Kármán Line?
100km
What type of animal was the first to orbit Earth?
A dog (Laika)
Mass is a measure of how much ______ is in an object.
matter
How many planets are in our solar system?
8
Outer space is a near-perfect ______.
Vacuum
How long would it take to drive to the Kármán Line (if we could).
Just under an hour.
Who used a telescope to study space in 1610?
Galileo Galilei
Weight depends on what force?
gravity
Name the four terrestrial planets.
Mercury, Venus, Earth, Mars
Why can’t sound travel in space?
There is no air / no particles to carry sound waves.
Put these in order from lowest to highest:
Troposphere, Stratosphere, Mesosphere
Troposphere → Stratosphere → Mesosphere
Who were the first astronauts to walk on the moon?
Neil Armstrong and Buzz Aldrin
If gravity increases, what happens to weight?
It increases.
Name two gas giants.
Jupiter, Saturn, Uranus, Neptune (any two)
Outer space is the universe beyond Earth’s ______.
atmosphere
Would an airplane or a rocket be needed to cross the Kármán Line? Why?
A rocket, because there isn’t enough air for airplane wings to work.
What is the International Space Station?
A space research lab that orbits Earth and is shared by many countries.
Jupiter’s gravity is 2.4 times stronger than Earth’s.
If you weigh 100 lbs on Earth, how much would you weigh on Jupiter?
240 lbs
What galaxy is our solar system located in?
The Milky Way Galaxy