Diffusion

Diffusion occurs only in solids

• True

• False

What is a solute?

• A substance dissolved in another substance

• the substance doing the dissolving

What is a solvent

• The one doing the dissolving

• The substance dissoved in another substance

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

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

Select the 4 correct answers. A particle _____.

• can be a solid.

• can be a liquid.

• can be a gas.

• has random motion.

• remains stationary.

Which diagram best shows the end result of diffusion?

• F
• G
• H
• J

Tags

NGSS.MS-PS1-4

Diffusion is the movement of molecules from an area of _____ concentration to an ______ concentration

• High, low

• Low, high

• Low, low

• High, high

Where is there a low concentration of dye?

• at the bottom of cup

• in the color

• at the top of cup

• no concenteraion gradient