Weather and Atmosphere

What is the mixture of gases that surrounds the planet? 

• Atmosphere
• Weather
• Wind
• Fog

The atmosphere is important because it has gases we need for life

• False
• True

Which are reasons why the atmosphere is important?

• Protection
• Temperature
• Water and Weather
• All of These

Which gas makes up 78% of the atmosphere?

• Oxygen
• Carbon Dioxide
• Nitrogen
• Water Vapor

Which gas makes up 21% of the atmosphere

• Oxygen
• Carbon Dioxide
• Nitrogen
• Water Vapor

Without small solid particles, clouds would not form and there would be no rain

• True
• False

Water vapor is water that is in a solid state

• True
• False

What is the height above sea level called?

• Air pressure
• density
• water vapor
• altitude

What is the weight of the air pressing against an area called?

• Density
• Altitude
• Air pressure
• Atmosphere

As altitude increases (gets bigger) density will...

• increase (get bigger)
• stay the same
• decrease (get smaller)