What is Atmosphere ?

Name two ways the atmosphere is essential to life on Earth.

• It provides us with oxygen to breathe and regulates Earth's temperature.

• It enables harmful rays to burn up Earth and allows flying meteors in.

• It provides us with water to breathe and irregulates Earth's temperature.

What happens to the density of air molecules as you go higher in the atmosphere?

• The density of air molecules increases the higher you go into the atmosphere.

• The density of air molecules decreases the higher you go into the atmosphere.

• The density of air molecules decreases the lower you go into the atmosphere.

The atmosphere contains a mixture of _____, oxygen and smaller amounts of gases essential for life.

• nitrogen

• hydrogen

• milk

The atmosphere is more dense at sea level than higher altitudes.

• True

• False

The atmosphere is essential to life on Earth as it protects Earth from harmful UV rays, provides energy to the biosphere, provides warmth and regulates the climate.

• True

• False

The mixture of gases found in the lower part of the atmosphere varies quite a bit in different locations around the world.

• True

• False

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

Without the atmosphere, our planet would be inhabitable.

• True

• False

Tags

NGSS.MS-ESS2-6

The atmosphere contains a mixture of nitrogen, oxygen and smaller amounts of gases essential for life.

• True

• False

The force of Earth's gravity pulls molecules of gases into a layer surrounding the planet. This mixture of gases forms a layer around the Earth we call the _______

• atmosphere

• biosphere

Tags

NGSS.MS-ESS2-6