Earth and Environmental Science ~ Unit 7, Module 23 Questions

Starting at the center, which is the correct order of solar layers?

core, radiation zone, convection currents

Which type of spectrum does the Sun produce?

Absorption

What type of solar activity is an arc of gas that gets ejected from the chromosphere?

Solar Prominence

Which layer of the Sun is visible all the time?

Photosphere

What property of the Sun produces sunspots?

Magnetic Field

Which is a group of stars named after animals, mythological characters, or everyday objects?

Constellation

Which star cluster is made of stars that are densely packed into a spherical shape?

Globular

What is true about circumpolar constellations?

They appear to rotate around one of Earth’s poles.

Which relationship is correct?

Hotter stars are brighter than cool stars.

Which property determines a star’s lifetime on the main sequence?

Mass

Which two key stellar properties determine all the other stellar properties?

Composition and Mass

Which is the proper life cycle order for stars like the Sun?

Main-sequence star, red giant, white dwarf, planetary nebula

What term describes the balance between pressure and gravity in a star?

Hydrostatic Equilibrium

What must occur for a protostar to officially become a star?

Fusion

Which type of star never produces fusion in its core?

Brown Dwarf