Chemistry Gases

Gas molecules can easily be compressed  because ___________. 

• gas molecules are soft

• gas molecules are far apart

• gas molecules follow the shape of the container

Pressure is caused by ______.

• gravity.

• gas molecules colliding with each other.

• gas molecules colliding with surfaces of the container.

• gas molecules reacting with each other.

Which container will have lower pressure?

• left

• right

• they both have the same pressure

You decide to make a balloon animal. As the balloon is being twisted, it increases the pressure inside of the balloon. What happens to the volume?

• It increases

• It decreases

• It stays the same

A balloon will pop in the atmosphere because..

• Pressure goes down volume goes up

• Pressure goes up volume goes down

• temperature goes down volume goes up

• volume goes down temperature goes down

How could you make the stopper pop out of the flask?

• Decrease pressure

• Decrease temperature

• Increase volume

• Increase temperature

Tags

NGSS.MS-PS1-4

How could you "re-inflate" the balloon?

• Heat the balloon up 

• Cool the balloon down

• Remove some helium

• Ask the balloon to re-inflate

Tags

NGSS.MS-PS1-4

Pick the best answer to explain all properties of gases....

• They're fluids 
  Can be compressed
  Little space between particles 

• They're solids 
  Can be compressed
  Lots of space between particles 

• They're fluids 
  Cannot be compressed
  Lots of space between particles 

• They're fluids 
  Can be compressed
  Lots of space between particles 

What happens to the average kinetic energy of matter when it is heated?

• It increases

• It decreases 

• It doesn't change

• It cannot be determined

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

You go camping and roast marshmallows over a campfire. What happens to the volume of the air bubbles inside the marshmallows? 

• It increased

• It decreased

• It stayed the same

Tags

NGSS.MS-PS1-4