vocabulary definitions
what is the definition for a planet
A large natural object that orbits a star and is held together by its own gravity.
where would weather balloons be
stratosphere
1610
Galileo Galileo first used a telescope to view celestial bodies
Mercury
-smallest
-closest to the sun
-no moons
Jupiter
-biggest in the solar system
-at least 67 moons
what is the definition of a orbit
The specific path a planet takes to travel around the sun
where would shooting stars be
mesosphere
1957
Lakia (russian space dog) is first animal to orbit earth
venus
-hottest because of its carbon monoxide atmosphere
saturn
-famous for its large rings made of ice,dust and rock
what is the definition of a rotation
The spinning of a planet on its axis which determines the length of a day
where would the international space station be
thermosphere
1961
Yuri Garian is the first human in space
Earth
-largest terrestrial planet
-only one with abundant water and life
uranus
-blue planet
-has a solid core
-has very violent storms
what is the definition of a revolution
one full orbit around the sun which determines the length of a year
where would communication satellite be
exosphere
1969
Neil armstrong and Buzz aldrin are the firs people to set foot on the moon
Mars
-the red planet
-has 2 moons
-one year is 687 days
neptune
-farthest from the sun
-blue because of methane gas
what is the karman line
the karman line is the boundary at 100km which is where space starts
what are all of the atmosphere from ground up
troposphere,stratosphere,mesosphere,thermosphere, and exosphere
2001
Dennis Tito is the first space tourist
what makes a terrestrial planet made of
Rock/metals
what are the jovian planets made of
mostly gasses