Astronomy Review

what are the outer planets mostly made up of

• helium and hydrogen

• silicate and rocks

• ice and water

• methane and propane

What is an equinox?

• Capricorn and Cancer

• Sun rays hit the equator directly

• When the moon passes in front of the sun

• Solstice

when the solar system formed, smaller bodies joined together through collision and the force of gravity to form larger bodies called

• moon

• asteroids

• planetesimals

• protoplanets

Which layer creates all of the energy produced by the sun?

• Radiation Zone

• Core

• Photosphere

• Corona

Which layer is the visible surface of the sun and produces the light we see from the sun?

• Radiation Zone

• Core

• Photosphere

• Corona

Which layer is only visible during a solar eclipse and has a temperature close to 30000 K.

• Radiation Zone

• Core

• Photosphere

• Corona

Which are dark spots on the surface of the sun?

• Prominences

• solar flares

• sunspots

• solar wind

Which occurs in the core of the sun where lighter elements are combined to form heavier ones?

• Nuclear Fission

• Crashing

• Smashing

• Nuclear Fusion

The _______ of a star determines its temperature, luminosity, and diameter.

• Mass

• Composition

• Density

• Energy Output

Which is in the proper time order?

• Red Giant to White Dwarf to Main sequence

• white dwarf to main sequence to red giant

• main sequence to red giant to white dwarf