Big Bang formation
The Big bang theory happened ________ years ago
Answer: 13.8 billion years ago
Scientist used the ________ to describe their observation on how galaxies are expanding.
Answer: The Big bang theory
In what state did the universe emerge from?
It emerged form a state of density and pressure (Big Bang)
What is light?
Answer: A form of energy that travels as a wave
The burning up of the rock in the Earth's atmosphere is ______
Answer Meteor
What is the Big Bang Theory?
Answer: The Big Bang Theory is a model explaining how the universe began.
Scientists believe that _____ are moving apart, but they originally started out to be closer together.
Answer: Galaxies
When did two scientists accidentally discover an unexpected radiation coming from all directions in space?
Answer: 1965
Does each galaxy emit their own spectrum/range of colors in a pattern? Yes or no?
Answer: Yes
When thee meteoroid hits the surface of the Earth, It is known as ____
Answer: Meteorite
The event that occurred when the universe emerged from this known as the ______.
Answer: Big Bang
Scientists estimate " Time Zero" to be about _ to _ billion years ago.
Answer: 10 to 15
What did the radiation come from?
Answer: The Big Bang
How can we tell an object is moving?
Answer: We can tell a object is moving by red shift
A small space rock that orbits around in space and normally breaks off from a comet or asteroid.
Answer: Meteoroid
All ____ of the universe, was packed together into one small, extremely dense, hot mass under pressure.
Answer: Matter
In the past, many cultures had different beliefs of how the universe began? True or false?
Answer: True - Many cultures held diff. beliefs of their own, however beliefs were NOT the same as scientific theories (cannot be tested, or proved with evidence.)
When did the astronauts find evidence of galaxies moving?
Answer: 1912
What RED SHIFT?
Answer: Red shift refers to the shift in a wavelength of light to longer wavelengths of light.
In what state did a meteorite strike in the U.S.? What is the name of the hole given for the meteorite?
Answer: Arizona and crater
Even after the Big Bang occurred, we now know EVERYTHING about the universe. True or false?
Answer: False- Scientists CAN describe what they think occurred about a fraction of a sec. after the Big Bang, but not everything was revealed after the explosion.
What is an astronomer's job? a.) to explore b.) to discover galaxies c.) to solve the mystery of how the universe began
Answer: c.)
What has the galaxies been doing since the big bang?
Answer: the galaxies have been expanding/spreading
Do all galaxies show Red shift? Yes or No?
Answer: Yes
How do we get meteor showers?
Answer: when the Earth passes through the trail of debris left by a comet or asteroid