I WONDER - How Does Gravity Affect Astronauts?

In space, astronauts experience spinal decompression, which makes them taller. Upon returning to Earth, gravity causes their height to revert to normal.

What happens to an astronaut's spine when they are in space?

• It shrinks.

• It becomes decompressed.

• It remains the same.

• It becomes compressed.

Why do astronauts appear taller in space?

• Their spines decompress.

• Their heads swell.

• Their muscles expand.

• Their bones grow longer.

What is the main factor that changes an astronaut's height in space?

• Increased sunlight exposure.

• Lack of exercise.

• Absence of gravity.

• Dietary changes.

What causes astronauts to return to their original height upon returning to Earth?

• The increase in atmospheric pressure.

• The presence of gravity.

• The change in temperature.

• The change in diet.

How does gravity affect astronauts when they return to Earth?

• It makes them taller.

• It has no effect.

• It causes them to shrink.

• It restores their original height.