7.9 AB

Match the following

• Atmosphere

• Keeps Earth’s temperature stable

  and cool

• Magnetic field

• Protects life on Earth from harmful

  particles from solar winds

• Water

• Affects temperature of a planet

• Distance from the Sun

• Is necessary for life as we know it

Tags

112.27.b.9.C

Match the following

• Instruments

• The protective gear that protects

  astronauts from the cold, airless

  environment of space

• Space station

• The specialized equipment used to

  conduct research and repair damaged

  equipment

• Accommodations

• The living quarters and equipment used to

  protect astronauts while in space

• Space suit

• A man-made laboratory that is placed in

  space for research

Tags

112.27.b.9.C

Astronauts must exercise regularly while in space to prevent their

​ (a)   and bones from becoming weak.

• muscles
• blood
• heart
• vessels
• liver

Tags

112.19.b.9.B

​ (a)   are used in space for

astronauts to communicate with each other and the mission team on Earth.

• radios
• telephones
• cellular devices
• headphones
• stereos

Tags

112.27.b.9.C

​ (a)   protect astronauts from the cold temperature and

provide ​ (b)   for the astronauts to breathe.

• space suits
• oxygen
• helmets
• jet packs
• velcro
• carbon dioxide

Tags

112.19.b.9.B

Earth’s ____________________________ helps protect life from ultraviolet radiation.

• ozone layer

• oxygen content of atmosphere

• presence of water

• proximity to the Sun

Tags

112.27.b.9.C

Earth’s atmosphere is mostly made up of the gases ___________________________ and

_______________________________.

• Nitrogen and Carbon Dioxide

• Oxygen and Carbon Dioxide

• Nitrogen and Oxygen

• Argon and Nitrogen

Tags

112.27.b.9.C

There is some evidence to suggest that Mars once had liquid ​ (a)   ,

though now it may be trapped as ​ (b)   .

• water
• ice
• oxygen
• nitrogen
• rock

Tags

112.27.b.9.C

In the vacuum of space, there is no

​ (a)   . A spacesuit also provides the astronaut

with air to breathe. The ​ (b)   may come from a hose

from the spacecraft.

• air to breathe
• oxygen
• sunlight
• meteors

Tags

112.27.b.9.C

The helmet on the spacesuit must be made of a tough plastic. The plastic must be tinted to protect an astronaut's eyes from the blinding light of the ​ (a)   .

• Sun
• moon
• meteor
• Earth

Tags

112.27.b.9.C