Geoscience 3.1 -3.3 Semester Review

Front

What substance fills the space between galaxies and universes?

Back

Dark Energy

Front

What do we use to measure the distance between galaxies, stars, and planets?

Back

Light Year

Front

What is a Star?

Back

A hot sphere of plasma that produces its own energy.

Front

What is the Universe?

Back

Includes all matter and space that exist.

Front

Is this the correct order for the History of the Universe: 1) Inflation 2) 1st Nuclei 3) 1st Atoms 4) 1st Stars?

Back

True

Front

What is Dark Matter?

Back

A form of matter that does not emit light or energy, making it invisible and detectable only through its gravitational effects.

Front

What is the Big Bang Theory?

Back

The leading explanation for the origin of the universe, stating it began from a singular point and has been expanding ever since.

Front

What is a Galaxy?

Back

A massive system that consists of stars, stellar remnants, interstellar gas, dust, and dark matter, bound together by gravity.

Front

What is a Light Year?

Back

The distance that light travels in one year, approximately 5.88 trillion miles (9.46 trillion kilometers).

Front

What is a Black Hole?

Back

A region of space where the gravitational pull is so strong that nothing, not even light, can escape from it.