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Planets
Galaxies
Moon
Stars
Vocab
100
Why is Mars known as the “Red Planet?”
What is Mars has a chemical called iron oxide (rust) in its soil that causes the surface to take on a reddish appearance.
100

Define Irregular Galaxy

no regular shapes. also, bright young stars.

100

Define Highland.

Oldest, most highly cratered regions of the moon

100

When our sun runs out of hydrogen it will be come what?

Red Giant

100

The movement of Earth on its axis.

Rotation

200

what are the rings around Saturn made of?

Hydrogen, helium, water vapor. etc. 

200

Define Quasar Galaxy.

Active, young galaxies with black holes at their centers

200

The length of time it takes to get through all moon phases.

29.5 days

200

As a star's density and temperature increases (after a compositional change) what else increases?

Luminosity (Brightness)

200

Define Planetismal.

One of the small asteroid-like bodies that can help form planets

300
What is the furthest planet from the sun
What is Neptune
300
What is the closest galaxy to the Milky Way?
What is Andromeda.
300

Define New Moon.

When the moon is between Earth and the sun and can't be seen. 
300

Describe the difference between apparent and absolute magnitude.

apparent magnitude: the amount of light from the star that reaches Earth

absolute magnitude:the amount of light a star actually gives off

300

Define Interferometry.

process that links separate telescopes so they act as one telescope, producing more detailed images as the distance between them increases.

400

Why is Venus considered the hottest planet in the Solar System?

What is it has a a large amount of greenhouse gases and a thick atmosphere

400
What is the name and shape of the galaxy that contains Earth?
What is What is the Milky Way Galaxy (Spiral)
400

What is the difference between the waxing and waning phases?

Waxing- the illuminated side is more visible

Waning- the illuminated side is less visible

400

Define Supernova.

tremendous explosion in which a star breaks apart, releasing energy and newly formed elements

400

Define Galaxy.

a large group of stars, dust, and gas held together by gravity.

500

what is the giant red spot on Jupiter

many high pressure gas storms in that area

500

What is the big bang?

What is a theory on the beginning of the universe when a small point of energy violently expands to create all matter

500

What is the difference between a solar and lunar eclipse?

Solar- moon's shadow appears on Earth's surface

Lunar- Earth's shadow appears on the moon's surface

500
List all 5 characteristics that we use to classify stars.

Color

Temperature

Size

Brightness

Composition

500

Define both reflecting and refracting telescopes.

Reflecting- concave mirrors to collect and focus light

Refracting- convex lenses to gather and focus light