Int 1 Science Study Guide Exam #3

How many layers of the atmosphere did we cover?

• 6

• 5

• 4

• 3

What holds us and everything else in place?

• the atmosphere

• air

• gravity

• the sun

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

What percent of the atmosphere is oxygen?

• 75%

• 20%

• 5%

• 95%

What is the most common air found in the atmosphere?

• nitrogen

• carbon dioxide

• oxygen

• carbon

As altitude increases air pressure does what?

• increases

• decreases

• fluctuates

• doesn't change

The mixture of gases that surrounds the Earth is known as what?

• gravity

• air pressure

• atmosphere

• biome

What layer is closest to the surface of the Earth?

• troposphere

• stratosphere

• mesosphere

• exosphere

A thunderstorm would occur in what layer?

• asthenosphere

• mesosphere

• stratosphere

• troposphere

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

What layer is the ozone layer found?

• stratosphere

• asthenosphere

• thermosphere

• exosphere

What is the purpose of the ozone layer?

• helps regulate the weather on Earth

• regulates air pressure

• absorbs harmful UV rays

• breaks up meteors before they hit the surface