Early Models
What is the difference between the geocentric and heliocentric models?
What is geocentric is earth centered and heliocentric is sun centered?
What is the Blue planet?
What is Earth?
Which planet is the largest in the Solar System?
What is Jupiter?
How old is the Solar System?
What is about 4.5 billion years old?
How old is the universe?
What is about 13.8 to 14 billion years old?
Which astronomers are associated with the geocentric model?
Who are Aristotle and Ptolemy?
What planet is known as the Planet of Extremes?
What is Mercury?
Which planet is titled on its side at 98 degrees and is 1 of 2 planets with a retrograde rotation?
What is Uranus?
This object has ice, a tail, a nucleus, what is it?
What is a comet?
Where is the asteroid belt located?
What is between Mars and Jupiter?
Who published the geocentric model of the universe and refined it to state that planets moved in epicycles and
Who published the heliocentric model?
Who are Ptolemy and Copernicus?
What are the 4 terrestrial planets in order starting from closest to the sun, and why are they called that?
What are Mercury, Venus Earth and Mars?
What is they have solid, rocky surfaces similar to earth and the Latin word "terra" means Earth?
What are the 4 outer planets in order starting from closest to the sun, and why are they called gas and ice giants?
What are Jupiter, Saturn, Uranus and Neptune?
What is because their surface is made up of gas and icy elements?
What is the big bang theory?
What is an explanation that the universe began with a singularity that expanded.
What is the name of the galaxy we live in, what type of galaxy is it, and where is the solar system located in this galaxy?
What is the Milky way galaxy, which is a spiral galaxy with the solar system located on it's Orion Arm.
Which astronomers are associated with the heliocentric theory?
Who are Copernicus, Galileo, Kepler, Newton and Hubble?
What are 2 things Mars in known for?
What are:
1. The Red Planet due to oxidation (rust)
2. The tallest/largest volcano in the Solar system
What is the name of Saturn's moon and why is it so popular?
What is Ganymede and what planet is it larger than?
What is Titan because it has methane and ethane rivers and lakes and it's own atmosphere?
What is Mercury?
Explain what keeps the planet moving in orbit around the sun. (define the 2 concepts)
Planets stay in orbit due to the force of attraction (gravity) and inertia (the tendency of an object in motion to stay in motion and for an object as rest to stay at rest).
What 2 factors determines how strong the force of gravity will be between objects?
The more massive and object is, the stronger its gravitational pull and the closer objects are to each other the stronger the force. (Mass and Distance)
What are the 3 evidences for the big bang theory first suggested by Hubble?
What are
1. galaxies moving away from each other,
2. cosmic background radiation and
3. the vast amount of the elements of hydrogen and helium in the universe?
What are 4 things that Venus is known for?
What are:
1. The hottest planet in the solar system due to the runaway greenhouse effect.
2. Earth's twin due to it's size
3. having the most volcanoes and mountains in the solar system
4. Retrograde Rotation
Why does Neptune and Uranus appear blue?
What is because it consists of methane?
What is the difference between and meteoroid, a meteor and a meteorite?
What is their location? A meteoroid is in outer-space, a meteor has entered earth's atmosphere and a meteorite has hit the surface of the Earth.
How long is Earth's Rotation and what is a rotation?
How long is Earth's Revolution and what is a revolution?
Earth's rotation is 24 hours and a rotation is the spinning of the planet on its axis.
Earth's revolution is its orbital journey around the Sun, taking approximately 365.25 days (one year) to complete