Planets
What planet is furthest from the sun?
Neptune
What 2 forces are responsible for the moon's orbit around Earth?
Inertia and Gravity
How old is our planet?
4.6 Billion yrs old
Solar system model - Sun Center
Heliocentric
What season is the Northern Hemisphere experiencing when it is tilted directly toward the Sun?
Summer
What planet is known as the "red planet"?
Mars
The sun's mass/gravity
What is Hubble's law?
The further the galaxy, the faster it is moving away
Small, dense remains of a high-mass star after a supernova
Neutron Star
How many stars are estimated in the Milky Way Galaxy?
200 Billion
Which planet is the largest?
Jupiter
How do the moon's revolution and rotation compare?
They take the same amount of time
How old is our universe?
13.7 Billion yrs old
A streak of light in the sky produced by the burning of a meteoroid in Earth's atmosphere
Meteor
What is a direct result of the Earth's tilt on its axis?
Seasons
Which planet is tilted on its side?
Uranus
How long does is take for the Earth to complete one rotation?
~24 hours
What does not give off electromagnetic radiation?
Dark Matter
Darkest part of a shadow
Umbra
The presence of Olympus Mons on Mars is evidence of what?
Mars has a molten subsurface layer
List the planets in order from the sun.
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
What causes night and day?
The Earth's rotation
What is the initial explosion that resulted in the formation and expansion of the universe?
The Big Bang
Inner layer of the sun's atmosphere that gives off its visible light
Photosphere
What can occur with the alignment: Sun, Moon, Earth?
Solar Eclipse