1.

What happens to the surface of a spaceship in direct sunlight in space?

It gets very hot slowly.
It gets very hot quickly.
It stays at the same temperature.
It gets cold very slowly.

It gets very hot quickly.

2.

In what way are conditions in space different from those on Earth?

You weigh twice as much in space as you do on Earth.
There is no direct sunlight in space.
Space is nearly a vacuum.
You can’t see in space because it is too bright.

Space is nearly a vacuum.

3.

Long-term exposure to _____ can cause health problems.

heat
cold
microgravity
sunlight

microgravity.

4.

Which term means “empty of all matter”?

airtight
microgravity
weightlessness
vacuum

Vacuum.

5.

What types of items must be redesigned to be able to use them in space?

electronic devices
clothes
drink containers
spacecraft

Electronic devices.

Who became land owners in exchange for services in the feudal system?

A.
fiefs

B.
serfs

C.
vassals

D.
knights