Diffusion for ELs

What is this?

• a math problem in a textbook

• a clear mug with water

• an orange and black tiger

• a spoon, plate, and fork

What is this?

• green food coloring, dye

• a frog in a pond

• a box of envelopes

• a motorcycle on the street

What is this?

• a cup of coffee

• a medicine dropper

• a blue car

• a tree on a mountain

What is this?

• fork

• knive

• spoon

 What do you hear?

•  Diffusion is the movement of molecules from a high concentration to a lower concentration.

•  diffusion, or the movement of molecules from a low concentration to a higher concentration.

Say this word: Diffusion

10 sec audio

Diffusion is the movement of molecules from a ____ concentration to a ______ concentration.

• high, lower

• lower, high

• flat, round

• round, flat

True or false. Spraying air freshener is an example of diffusion.

• true

• false

Draw arrows showing where the dye molecules will go next.

After the food coloring molecules disperse in the water, the color of the water will be ____.

• dark blue

• clear, transparent

• light green

• There will be no change.