Friday Class Practice

Draw a Spiral Galaxy

Draw an Elliptical Galaxy

Draw an Irregular Galaxy

Which description is considered most accurate regarding what actually happened during the Big Bang?

• Two galaxies collided causing an immense explosion as stars crashed into one another

• All of what would become the universe was concentrated in a single small point, or singularity, which rapidly expanded into what is now stars, planets, galaxies, matter, and energy.

• All matter emerged from a massive black hole at the center of the universe.

• Parts of the sun were ripped off by massive internal explosions and were thrown into space where they cooled to become other things, like plants, comets, and other galaxies.

Rank the following from smallest to largest

• Universe

• Solar System

• Local Cluster

• Planet

• Milky Way

Answer explanation

The universe contains all the matter and energy that has or will ever exist, including an estimated billions of galaxies. Solar systems refer to a single star with its satellites compared to star systems (with as few as two stars) and star clusters (at least tens of stars).

Rank the following from smallest to largest

• Planet

• Universe

• Solar System

• Galaxy

• Comet

Answer explanation

The universe contains all the matter and energy that has or will ever exist, including an estimated billions of galaxies. Solar systems refer to a single star with its satellites compared to star systems (with as few as two stars) and star clusters (at least tens of stars).

What type of galaxy is this?

• Spiral
• Elliptical
• Irregular 
• Irrational

Our Galaxy is called the

• M38
• Milky Way Galaxy
• Andromeda Galaxy
• Pinwheel Galaxy

Which is the largest object in our solar system?

• Moon

• Mars

• Venus

• Sun

What type of galaxy is this?

• Spiral
• Elliptical
• Irregular
• Irrational