Diffusion

Diffusion occurs only in solids

• True

• False

How do the particles move in diffusion?

• From a region of low concentration to a region of high concentration

• From a region of high concentration to a region of low concentration

• From a region of low concentration to a region of low concentration

• From a region of high concentration to a region of high concentration

How long does diffusion last?

• Until the concentration of particles in the system is equal

• (Select this answer and I swear i'll make it harder for you in the assessment task)

• Until a region in the system has a greater concentration of particles than the other

• Until the particles disappear from the system

Tags

NGSS.MS-PS1-4

The movement of particles is __________, resulting in the particles being spread throughout the container

• Structured

• In a straight line

• Random

• In curved, way motions

Tags

NGSS.MS-PS1-4

What happens to the coffee particles when coffee is added to hot water?

• They sink to the bottom of the cup

• They spread out

• They clump together

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What does a 'region with high concentration' mean?

• An area with a SMALL number of particles

• An area with a LARGE number of particles

• An area with an UNEVEN number of particles

• An area with no particles

When does diffusion stop?

• After a day and a night

• When the particles are evenly spread out

• When there are no particles left

• When all the particles leave the system

Diffusion is the _______________ movement of particles freely in all directions to occupy the whole space available

• constant orderly
• constant random
• continuous
• fixed

Which gas will diffuse at the slowest speed?

• oxygen
• carbon dioxide
• bromine
• hydrogen

Tags

NGSS.MS-PS3-1

The picture  is an example of _________________.

• isotonic
• diffusion
• osmosis
• active transport