ASTRONOMY
COMETS, METEORS, ASTEROIDS
EARTH & MOON
THE PLANETS
VOCABULARY
100
Name all the inner planets.
Mercury, Venus, Earth and Mars
100
Which of these are described as "dirty snowballs?"
Comets
100
What 2 things cause the Earth to have seasons?
Revolution and the tilt of the axis
100
Which planet is known as the "red" planet?
Mars
100
What phase is this moon in?
3rd quarter or last quarter
200
What is the name of the theory that puts Earth as the center of the system of planets?
Geocentric
200
Where is the Asteroid Belt located in the solar system?
Between Mars and Jupiter
200
What degree is the Earth's tilt on its axis?
23.5 degrees
200
What planet is known as a dwarf planet?
Pluto
200
Name the 2 factors that keep Earth in orbit.
Gravity and inertia
300
What do astronomers use for measuring the distances of the planets from the sun?
Astronomical Units also known as AU
300
Why are meteors called shooting stars?
Because that is what they look like as they burn up in the mesosphere.
300
When an astronaut goes to the moon what will change? A) volume B) mass C) weight D) density
C) mass
300
Which planet has the most mass (largest)?
Jupiter
300
Who was the first scientist to use a telescope to see the sky?
Galileo
400
Name all the planets in the proper order from the sun.
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto
400
What are large chuncks of rock in space called?
asteroids
400
What cause the rise and fall of the Earth's oceans?
The moon's gravity
400
Why is Earth the most unique planet?
Because it is able to sustain life.
400
Mercury, Venus, Earth & Mars are known as these kinds of planets.
Rocky midgets or terrestrial
500
What ancient astronomer came up with the heloicentric theory?
Ptolemy
500
Where do scientists think comets come from.
The Oort Cloud of Keiper Belt
500
What are the 2 gases that make up the Earth's atmosphere?
nitrogen and oxygen
500
What planet is known for its rings?
Saturn
500
What is the name for the orbit shape when objects orbit the sun?
eliptical
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