8th 3 weeks end of semester

Front

What are the two main gases that stars are made of?

Back

Hydrogen and Helium.

Front

Why does the sun appear to be the brightest star in our sky?

Back

It is the closest star to Earth.

Front

What is apparent magnitude?

Back

A measure of the brightness of a celestial object as seen from Earth.

Front

Which type of magnitude depends on the distance between the star and the observer?

Back

Apparent magnitude.

Front

What type of plate boundary is formed when two tectonic plates collide?

Back

Convergent boundary.

Front

What is the primary function of a star's nuclear fusion process?

Back

To convert hydrogen into helium, releasing energy.

Front

What is the difference between absolute magnitude and apparent magnitude?

Back

Absolute magnitude measures a star's brightness at a standard distance, while apparent magnitude measures brightness as seen from Earth.

Front

What is the closest star to Earth?

Back

Proxima Centauri.

Front

What is a divergent plate boundary?

Back

A boundary where two tectonic plates move away from each other.

Front

What is a transform plate boundary?

Back

A boundary where two tectonic plates slide past each other.