7.9a & 7.9b Review

Front

Define habitable zone.

Back

An area that is just the right distance from the sun, or other star, that it is not too hot or too cold to support life.

Front

What can protect the bone health of astronauts on a space mission?

Back

Engaging in a daily routine using exercise equipment.

Front

What is a space walk?

Back

An activity in which an astronaut moves around and does work outside a spacecraft while in space.

Front

What are the conditions in space?

Back

Extreme temperatures, no atmosphere, microgravity, Ultraviolet radiation.

Front

Why do space stations require an oxygen system?

Back

Because in space, there is no air or atmosphere.

Front

What is microgravity?

Back

A condition in which objects appear to be weightless and experience very little gravitational pull.

Front

What is the vacuum of space?

Back

A space that is devoid of matter, including air.

Front

What is the purpose of a space suit?

Back

To protect astronauts from the harsh conditions of space, including extreme temperatures and lack of oxygen.

Front

What is the significance of ultraviolet radiation in space?

Back

Ultraviolet radiation can be harmful to living organisms and requires protection.

Front

What happens to bone density in microgravity?

Back

Bone density decreases due to the lack of gravitational force acting on the bones.