Weather Unit 1

A student traps air in a syringe by clamping it closed at the end. Four students draw models to explain what happens when the plunger is pushed down.

Which model best explains what happens when the plunger is pushed down?

• Particles get bigger

• Particles get smaller and stay near the bottom

• Particles are closer together

• Fewer particles remain

Tags

NGSS.MS-PS2-2

What is the best evidence that air has mass?

• It can be weighed

• It can be compressed

• It can be expanded

• It can be in a syringe

What does compressed mean?

• the gas that makes up most of the atmosphere

• forced into a smaller space

• a condition in the atmosphere

What is atmosphere?

• the layer of gases that surrounds Earth

• the study of gases

• the condition of the atmosphere

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

Which two gases are most abundant in the layers of the atmosphere?

• Oxygen and Hydrogen

• Nitrogen and Oxygen

• Helium and Oxygen

• Helium and Nitrogen

Here is the bottle system like the one you used in class. When you squeeze the other container, what will happen?

• The particles of air will become smaller

• The particles of air inside both bottles will move close together

• The particles of air inside the small bottle will move close together

• The particles will become larger

Which layer of the atmosphere is where weather is formed?

• Troposphere

• Mesosphere

• Thermosphere

• Exosphere

Tags

NGSS.MS-ESS2-5

When you compress air in a closed system, (MARK ALL THAT APPLY)

• It builds up pressure

• It increases the density of the air

• It makes the particles smaller

• Air will return to its original state when pressure is released

Which two locations have the same air pressure?

• A and B

• B and C

• C and D

• D and E

Where is the air pressure the highest?

• Location A

• Location B

• Location C

• Location D

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6