Space Unit

Earth and its solar system are a part of which of the following galaxies?

• Andromeda
• Black Eye
• Milky Way
• Cartwheel

What are the three shapes galaxies take?

• spiral, circular, elliptical
• elliptical, irregular, pancake shaped
• spiral, elliptical, irregular
• irregular spiral, flat

What are stars mainly made of?

• Dust particles
• Hot Liquid
• Hot Gas
• Rock

What is the name given to the event that formed the Universe?

• The Big Burst
• The Big Bang
• The Loud Explosion
• The Fizzy Pop

Ever since the Big Bang, the universe has been expanding...

• At a constant rate
• And constantly accelerating
• At different rates
• Exponentially

Which has longer wavelengths?

• Radio

• Visible

• Gamma

• X-ray

Stars form in giant clouds of gas and dust. What are these clouds called?

• Black Hole

• White Dwarf

• Super Nova

• Nebula

Which component of the universe contains all other components listed below and would have the greatest mass?

• Solar system

• Nebula

• Galaxy

• Planetary System

When a mass of hydrogen has enough density, it begins to fuse the hydrogen atoms together. This produces heat and light. What is this classified as?

• nebula

• star

• galaxy

• planet

Which describes the location of star A correctly?

• Star A is less bright than the Sun and has a surface temperature above 25,000 K

• Star A is brighter than the Sun and has a surface temperature below 25,000 K

• Star A is less bright than the Sun and has a surface temperature of above 11,000 K

• Star A is brighter than the Sun and has a surface temperature below 11,000 K.