The Universe
How did the universe begin?
The Big Bang
What is a star?
A giant ball of gas and dust, large enough to go through the process of nuclear fusion.
What are the inner planets? (list all)
Mercury, Venus Earth, Mars
How many seasons do we have on Earth?
4
Mrs. Murray has ___ cats. (bonus points if you know names!)
Three
Has the universe always been the current size?
No
Are all stars the same?
No
What are the outer planets?
Jupiter, Saturn, Uranus, Neptune
What are the four seasons?
Winter, Spring, Summer, Fall
We got through ___ units in Astronomy class this year.
8 (The big bang, galaxies, solar systems, stars, constellations, moon phases, eclipses, seasons)
Most of the universe is empty space and ____ (an element)
Hydrogen
What must an astronomical object do to be classified as a star?
Nuclear fusion
What is the largest planet?
Jupiter
What causes the seasons?
The tilt of Earth's axis, the revolution of the Earth around the Sun
Our class has ___ students (INCLUDING VIRTUAL STUDENTS)
19
Where do scientists put telescopes to avoid interference from Earth's atmosphere?
In the desert, in space, away from bright lights
How long do stars live? Do all stars live for the same amount of time?
Millions to trillions of years
Our solar system formed ___ years ago
approximately 4.5 billion
What defines one day on Earth? What defines one year on Earth?
24 hour rotation on Earth's axis
365 day revolution
FREE POINTS!!
You got free points!
What evidence supports the big bang theory?
Cosmic background radiation and doppler shift/redshift
What are the two ways a high mass star can die?
Neutron Star & Black Holes
Why is Pluto not classified as a planet?
Pluto is not the largest object in its' orbital path
If the Earth was not tilted on its axis, what would the seasons be like?
All latitudes on the planet would have consistent climate. Every location would get 12 hours of daylight and 12 hours of night.
When was the Moon Landing?
July 20th, 1969