What is a star? 1 point

A ball of burning plasma…mostly hydrogen and helium
The result of clouds of gas in space colliding and causing nuclear fusion
The process by which most elements are formed and released into the universe
All of the above

All of the above.

The life cycle of a star depends upon its…

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1 point
Luminosity
Mass
Apparent Magnitude
Age

Mass

Put the following in order for the life cycle of a SMALL or AVERAGE Sized Star

Nebula ==> Protostar ==> Main Sequence Star ==> Red Supergiant ==> Supernova ==>Black Hole
Nebula ==> Protostar ==> Main Sequence Star ==> Red Giant ==> Planetary Nebula ==>White Dwarf
Planetary Nebula ==> Protostar ==> Giant ==> Supernova ==> Main Sequence ==> Black Hole
Protostar ==> Nebula ==> Main Sequence Star ==> Red Supergiant ==> Supernova ==>Black Hole

Nebula ==> Protostar ==> Main Sequence Star ==> Red Giant ==> Planetary Nebula ==> White Dwarf

What is a phase that our sun, a small to average sized star, will never experience?

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1 point
Red Giant
Supernova
White Dwarf
Nebula

Supernova

A group of scientists found a new star in the galaxy. They determined that it was over 5x the size of our sun and is in its main sequence. What would be the next phase of this star’s life?

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1 point
Red Giant
White Dwarf
Red Supergiant
Neutron Star

Red Supergiant

View & read about the Orion Nebula. What 2 gases make up most of this cloud where new stars are formed?

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1 point
Hydrogen and Iron
Hydrogen and Carbon Dioxide
Hydrogen and Helium
Helium and Lithium