Air is

The composition of gases in air is

• 78% Nitorgen

  21%oxygen

  0.03% carbon dioxide

  and mix of watervapor and other gases

• 0.03% Nitorgen

  21%oxygen

  78 %carbon dioxide

  and mix of watervapor and other gases

• 78% Nitorgen

  21%carbon dioxide

  0.03% oxygen

  and mix of watervapor and other gases

• Equal amount of carbon dioxide and oxygen

What is the empty bottle full of?

• invisible water

• invisible ink

• air which is always invisible

What is the density of air in the bottle exactly same as?

Every cubic centimeter of air inside and outside the bottle has the same number of particles. Is this statement true or False

• True

• False

About How many particles of air are there in a cubic centimeter of air?

• A octillion

• A quintillion

• A septillion

• A quadrillion

What is the speed of air at room temperature?

• 500m/s

• 100m/s

• 400m/s

• 300m/s

Anything that is in motion has which kind of energy?

• potential

• kinetic

• gravitational

• electrical

Tags

NGSS.MS-PS3-1

How do air particles work?

• By crashing into each other

• By pushing each other

• By bumping ,pushing and hitting each other and the walls of the container and everything around them

• all of the above

The amount of kinetic energy an object has depends on its

Tags

NGSS.MS-PS3-1