heliocentric
What is the heliocentric theory?
Ware the Sun is in the middle of the solar system.
What is the geocentric theory???
The geocentric theory is ware the earth is in the middle of the Universe
What is a meteor?
A small body of matter from outer space that enters the earth's atmosphere and the burns
what is a comet?
A cosmic snowball of frozen gases, rock, and dust that orbits the sun.
What would happen if we didn't have gravity and what would happen if we didn't have inertia?
No gravity means we would float away. No inertia means we would crash into the sun
Heliocentric Theory Came First! True or False?
False
What is in the center of the universe in the geocentric theory?
Earth
Where are meteorites located?
On Earth's Surface
What is the difference between an Asteroid and a Meteoroid?
Asteroids are bigger
What is three difference between inner and Outer planets?
Inner Planets: Mercury, Venus, Earth, Mars
Characteristics: small, dense, rocky, thin atmospheres
Outer Planets: Jupiter, Saturn, Uranus, Neptune
Characteristics: large, made of gas, thick atmosphere, has rings
Who used a telescope to help Copernicus prove the heliocentric theory true?
In 1610 Galileo Galilei observed with his telescope that Venus showed phases, despite remaining near the sun in earth's sky. this proved that it orbits the sun not earth.
Orbiting on the outside
Where do you find Meteoroids?
Space
Where do Comet tails Point?
Away from the Sun
What is special about Venus?
It has a toxic atmosphere that traps heat and makes it hot.
what does helio stand for in heliocentric?
Sun
what does the geo stand for in geocentric?
Earth
What is the order in size of meteors, meteorites, and meteoroids? (Biggest to Smallest)
Meteoroids, Meteors, Meteorites
where are comets located and where are asteroids located?
Comets can be found in the Oort cloud. Asteroids in the Kuiper Belt
Put these in order from Biggest to Largest:
Planet
Universe
Solar System
Galaxy
Universe, Galaxy, Solar System, Planet
Who made the heliocentric theory?
Nicolaus Copernicus
Who made the geocentric theory?
Ptolemy
Explain How Meteoroids end up as Meteorites?
Meteoroids start out in space as small rocks, they get caught in earth's gravitational pull and enter the atmosphere turning into Meteors and these meteors burn and if they survive and land on earth they turn into meteorites
What is the middle part of the comet called?
The Nucleus
What did the following Scientist come up with:
Kepler
Copernicus
Issac Newton
Ptolemy
Kepler: Elliptical Orbit
Copernicus: Heliocentric Theory
Issac Newton: Gravity
Ptolemy: Geocentric Theory