Components of the Universe

Reorder

Put the following in order of smallest on the left to largest on the right.

• Asteroid

• Moon

• Minor Planet

• Planet

• Star

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5

Multiple Choice

The sun is a really big star.

• True

• False

Multiple Choice

If something exploded in space, you could hear it.

• True

• False

Multiple Choice

The solar system is bigger than a galaxy.

• True

• False

Multiple Choice

Stars don't really look like this.

• True

• False

Multiple Choice

There are about one hundred galaxies in space.

• True

• False

Multiple Choice

The light from stars takes years to reach Earth.

• True

• False

Multiple Choice

Earth is at the center of the Milky Way galaxy.

• True

• False

Multiple Choice

You would weigh less on the moon than on Earth.

• True

• False

Open Ended

What did you notice about the age of the audio as we zoomed out? Why do you think that happened?

Match

Match the following pictures to their object type.

Nebula

Galaxy

Asteroid

Star

Planet

• Nebula

• Galaxy

• Asteroid

• Star

• Planet

Categorize

Options (8)

star

planet

comet

asteroid

nebula

minor planet

galaxy

universe

Organize these objects into the right categories by their light production.

Produces own light

Reflects light

Contains things that produce light

Multiple Choice

The pie graph to the left describes a celestial body that gives off light.

What type of celestial body is this?

• a star

• a galaxy

• a gas giant planet

• a terrestrial planet

Multiple Choice

If a star is 300 light-years from Earth, how long does it take light from that star to reach Earth?

• 300 years
• 300 days

• 300 hours

• 300 light years