I WONDER - What Can You Hear Out In The Universe?

The video explains that the universe is a vacuum, meaning it is an empty space without air. Sound travels through the vibrations of particles, but since there is no air in the universe, sound cannot travel as it does on Earth. Although some sounds have been detected in space, they are not experienced in the same way as on Earth.

What does it mean when we say the universe is a vacuum?

• It is a solid mass.

• It is filled with water.

• It is an empty space with no air.

• It is full of air.

How does sound travel?

• Through the vibrations of particles.

• Through light waves.

• Through magnetic fields.

• Through electrical currents.

Why can't sound travel in space?

• Because space is too dark.

• Because space is too large.

• Because space is too cold.

• Because there is no air in space.

What is a key difference between sound in space and on Earth?

• Sound is clearer in space.

• Sound is faster in space.

• Sound is louder in space.

• Sound is not experienced the same way in space as on Earth.

Have any sounds been detected in space?

• No, sound cannot exist in space.

• Yes, but they are not like sounds on Earth.

• Yes, and they are exactly like sounds on Earth.

• No, space is completely silent.