Crash Course Kids 25.1 The Universe

Space is so big that scientists had to come up with a way to measure the space in the Universe. So, how do they measure space?

• Miles

• Kilometers

• Speed

• Light Years

Light can travel at a speed of?

• 2,000 Kilometers per second

• 300,000 kilometers per second

• 200,000 kilometers per second

• 30,000 Kilometers per second

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

In one second, light can travel around the Earth ______ times?

• 5

• 6

• 7

• 8

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

What is our Observable Universe?

• The parts we can acutally see or observe in any direction.

• The parts closest to our planet that we can see or observe.

• The parts that we can see with our eyes.

• None of the above.

Our Observable Universe is__________ light years across.

• 73 Billion

• 63 Billion

• 83 Billion

• 93 Billion

Tags

NGSS.HS-ESS1-2