Vocabulary
Measuring Space
A Timeline Through Space
Galaxies
Life Cycle of Stars
100
The study of the Universe and everything in it.
What is Astronomy?
100
This is a measurement we use to measure the distance between stars in our universe
What is a Light year?
100
Scientist think this event occurred approximately 15 billion years ago: a great collection of matter, confined to a very tiny space exploded- and the universe was born.
What is the Big Bang Theory?
100
Name of our galaxy
What is the Milky Way Galaxy?
100
The approximate age of our sun
What is 4.6 Billion Years Old?
200
A natural satellite that orbits a planet.
What is a moon?
200
We use this measurement to measure the distances between planets in our solar system. One unit measures the distance between our sun and Earth
What is an astronomical unit?
200
Scientist believe this event caused indentations on the earth, moon and other planets in the solar system about 4 billion years ago.
What are meteoroids?
200
Most common type of galaxy in the universe
What is a Spiral Galaxy?
200
The force that pulls dust and gases together
What is Gravity?
300
An astronomical tool used to identify the visible spectrum emitted by a gas.
What is a spectroscope?
300
The distance between Earth and our closest star, Proxima Centauri?
What is 4.2 light years? or What is 25 trillion miles?
300
This event occurred 14 to 6 billion years ago. These formations have different shapes: elliptical, spiral and irregular.
What is the formation of galaxies?
300
Large cloud of dust and gas in a galaxy
What is a Nebula?
300
Term for a Red Supergiant explosion
What is a Supernova?
400
The first stage of a star's life cycle.
What is a Protostar?
400
The star that appears to stay in the same spot ever night.
What is Polaris (or North Star)??
400
Stars appear to move across the night sky because of this.
What is Earth's rotation?
400
Name and describe the three types of galaxy formations.
What is an Elliptical Galaxy - the spherical or football shaped, What is the Spiral Galaxy - the spiral shape with arms on either side, and What is the Irregular- these lack a specific shape?
400
One of the most massive stars in the universe. These stars are about 35 times more massive than our sun and millions of degrees hotter. They use up their energy faster than any other type of star and often burn for only a few million years.
What is a Blue Giant?
500
Two things that change during a star's life.
What is Mass, Color, Size, and Temperature?
500
How long does it take light from our sun to reach the earth?
What is 8 minutes?
500
Many stars have families of planets that and moons that revolve around them. Scientists believe these formations occurred about 4.5 billion years ago.
What is the formation of solar systems.
500
Our sun and its planets are located in this part of the Milky Way galaxy.
What is one of the spiral arms?
500
Stars burn by turning __________ gas into ___________ gas
What is Hydrogen to Helium?
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