The video explains the vastness of the observable universe, which is 93 billion light years across, by comparing it to the size of Earth. It uses a creative analogy involving pixels in a video to help visualize this immense scale. The Earth is represented as a tiny white pixel, while the entire string of pixels represents a fraction of the universe's diameter.

How wide is the observable universe?

• 93 billion light years

• 93 million light years

• 93 quadrillion light years

• 93 trillion light years

Tags

CCSS.8.EE.A.3

How many times larger is the observable universe compared to Earth?

• 10 quintillion times

• 50 quintillion times

• 100 quintillion times

• 200 quintillion times

In the pixel analogy, what does the single white pixel represent?

• The solar system

• The Milky Way galaxy

• The observable universe

• The Earth

What does the string of all pixels together represent in the analogy?

• The size of the Milky Way

• The entire universe

• The distance to the nearest star

• One tenth of the observable universe's diameter

Tags

CCSS.RI.8.1

CCSS.RI.9-10.1

CCSS.RL.11-12.1

CCSS.RL.7.1

CCSS.RL.9-10.1

What is the purpose of shrinking the pixel rows in the analogy?

• To show the size of a galaxy

• To illustrate the vastness of the universe

• To compare different planets

• To measure the speed of light

Tags

CCSS.RI.7.1

CCSS.RI.8.1

CCSS.RL.11-12.1

CCSS.RL.7.1

CCSS.RL.9-10.1