Diffusion

Diffusion occurs only in solids

• True

• False

What is a solute?

• A substance dissolved in another substance

• the substance doing the dissolving

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

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

Which diagram best shows the end result of diffusion?

• F

• G

• H

• J

Tags

NGSS.MS-PS1-4

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

Diffusion moves along the __________

• concentration gradient

• Avogadro's constant

• conservation of energy

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

The picture  is an example of _________________.

• isotonic
• diffusion
• osmosis
• active transport

What does “high concentration area” mean?

• Spread out
• Tightly packed together
• Uncrowded
• Spacious