Density is...

• how many particles there are

• how heavy the particles are

• how much space the particles take up

• how close together the particles are to each other

• how big the particles are

Hot particles...

• are more dense and rise

• are less dense

  and rise

• are less dense

  and sink

• are more dense and rise

Tags

NGSS.MS-PS1-4

The movement of particles in a circle due to differences in density is called...

• radiation

• conduction

• convection

• currents

Tags

NGSS.MS-PS1-4

The best place to put a furnace is...

• in the basement because heat rises

• in the basement because heat sinks

• on the top floor because heat rises

• on the top floor because heat sinks

Tags

NGSS.MS-PS3-3

Convection happens in...

• solids

• liquids

• gases

• fluids

• all of the above

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

Cold air is _____ because the particles have_____

• more dense;

  more energy

• more dense;

  less energy

• less dense;

  less energy

• less dense;

  more energy

Tags

NGSS.MS-PS1-4

If there is a fire and you need to get out of a smoky room, the best way to get out is:

• jumping as high as possible to get above the fire

• crawling along the floor because the hot smoke will rise to the ceiling

More dense particles are:

• heavier

• bigger

• farther apart

• closer together

Transferring heat through the movement of

hot and cold particles to new physical locations is called____

• radiation

• convection

• conveyor

• conduction

Tags

NGSS.MS-PS1-4

Convection will stop when____:

• the temperatures are very different

• the temperatures are a little different

• the temperatures are the same

• convection never stops

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4