Stuff About Stars
Other Stuff About Stars
More Stuff About Stars
Even More Stuff About Stars
Yet Another Category About Stars
100
The sun is classified as a __________
star
100

What elements are found in young/new stars?

H and He

100
What color are the "cooler stars"
reddish
100

What is the heaviest element produced through fusion in stars?

Fe - Iron

100

What force brings gas and dust together to form Nebulas.

Gravity

200

State 3 characteristics that determine the brightness of a star?

Size, Temperature, Distance from Earth

200

Why do we see stars as they were in the past?

Takes so long for their light to reach Earth.

200

Star Catalina is a "cooler star" but is very bright. What can you infer about Star Catalina?

It is very big.

200
Why is a protostar not a star?

Fusion hasn't begun. Does not emit light.

200

List the 3 types of galaxies

Spiral, Elliptical, Irregular

300

What process occurs at the core of a star?

Nuclear Fusion

300

What is a nebula?

a cloud of gas and dust

300

What structure begins to form at the center of a Nebula in the life of a star.

Protostar

300

What is a galaxy?

A collection of millions to billions of stars held together by gravity

300

What is a neutron star?

Remains of high mass star after supernova.

400

The sun is approximately how old?

4.6 billion yrs

400

Stars take 1 of 2 pathways in their life cycle. What determines their pathway?

Mass of star

400

What is the Spanish or French word for star?

estrella

étoile

400

How are elements heavier than iron formed?

Through supernova explosions.

400

What is the distance of a light year?

9.5 x 1012 km

500

What is a light year?

The distance light travels in one year.

500

The Corona is the outer layer of the Sun. What is it's temperature?

1-2 million oC

500

Name the closest star to Earth, after the Sun.

Proxima Centauri or Alpha C

500

What is a white dwarf?

Leftover core from a red giant, results from a low mass star.

500

State 2 pieces of evidence that support the Big Bang Theory

Universe is expanding

Cosmic background radiation

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