Air and Weather

The air on earth is a mixture of__________.

• gases

• air

• land

• wind

When air moves, humans call it _____________.

• gases

• air

• land

• wind

When air is heated, it_______

• expands

• contracts

When air is cooled, it_______

• expands

• contracts

Why is air important?

Choose 2 answers

• To sustain life and growth

• combustion

• Just because

• sea's blanket

Why is air important?

Choose 2 answers

• Earth's blanket

• maintains

  cool air

• maintains temperature

• sea's blanket

It is very stable in the atmosphere and is not involved to a great extent in chemical reactions. It takes 78% of air.

• Nitrogen

• Oxygen

• Carbon Dioxide

• Argon

It is created by plants. Animals breathe it in.

• Nitrogen

• Oxygen

• Carbon Dioxide

• Argon

It is a jacket of gases that surrounds our planet. It keeps us warm, gives us oxygen to breathe, and it is where our weather happens.

• jacket

• wind

• weather

• atmosphere

Farthest layer. There is almost no air. Satellites orbit this layer.

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

• Exosphere