Expanding Universe

Expanding Universe

Mrs. Sewell

Open Ended

Describe the universe.

Multiple Choice

How long is an astronomical unit?

• 9.5 trillion kilometers

• 85 billion miles

• 93 million miles

• 93 billion miles

Open Ended

How is looking into the sky like staring into the past?

Multiple Choice

How old is the universe?

• 13.7 million years old

• 13.7 billion years old

• 9.5 million years old

• 93 billion years old

Open Ended

Now I understand that the universe...

Open Ended

How do we know galaxies are moving away from Earth?

Open Ended

How does red-shift support the Big Bang theory?

Open Ended

According to the Big Bang Theory, how has the universe changed since the beginning?