Is earth made of mostly land or water?

Which of the following are essential items for space travel?

Why are space suits necessary for astronauts working on the surface of another planet?

The entire mass of air that surrounds Earth, made up of 78% nitrogen, 21% oxygen, and trace amounts of other gases.

Gas in Earth’s atmosphere that absorbs most of the damaging high-energy ultraviolet radiation from the Sun.

A portion of the electromagnetic spectrum emitted by the Sun; can cause tanning, sun burning, and skin cancers.

Magnetic lines of force from Earth’s polar north and south, acting like a giant magnet.

Which of the following characteristics of Jupiter best explains why Jupiter does not support life, while Earth does? Jupiter -

The habitable zone for the star in the diagram shown is between 200 and 250 million km away from the star.

What makes it hard for an astronaut to breathe in space?

Astronauts need all of the following to survive in space EXCEPT-

An astronaut is trying to move from one area of the space shuttle to another. What accommodations does this astronaut need?

Which of the following accommodations on the space station is used by astronauts to combat the effects of microgravity on their bones?

Astronauts wear thick gloves when they perform a space walk outside the space station. The gloves provide protection against -

Spacesuits have layers that have high capacity for thermal insulation in order to -

What design element of an astronaut’s spacesuit protects him or her from micrometeoroids, which are tiny bits of space debris travelling at high speeds?