Grade 7 Osmosis and Diffusion

The picture below is an example of _________________.

• osmosis
• isotonic
• diffusion
• active transport

Tags

NGSS.MS-LS1-3

Osmosis is the movement of _____ across a membrane.

• food
• energy
• oxygen
• water

What is DIFFUSION?

• 
• 
• 
• 

Tags

NGSS.MS-PS1-4

Where is there a low concentration of dye?

• at the bottom of cup
• in the color
• at the top of cup 
• no concenteraion gradient

Tags

NGSS.MS-PS1-2

Where is there a high concentration of barbeque smoke?

• In the container

• In the house

• Two streets over

• In the sky

Is the image showing osmosis or diffusion?

• diffusion

• osmosis

If salt is poured onto cucumber, what do you predict will happen?

• Water will move out of the cucumber cells and the cells will shrink.

• Water will move out of the cucumber cells and the cells will swell.

• Water will move into the cucumber cells and the cells will swell.

Tags

NGSS.MS-LS1-5

NGSS.MS-PS1-2

Look at the image. It is a model for osmosis. The little circles are water molecules. Based on the picture, which way will the water molecules move?

• It will move out of the cell, causing the cell to shrink.

• It will move out of the cell, causing the cell to swell.

• It will move into the cell, causing the cell to shrink.

• It will move into the cell, causing the cell to swell.

Tags

NGSS.MS-LS1-2

Which diagram best shows the end result of diffusion?

• F
• G
• H
• J

Tags

NGSS.MS-PS1-4

The girl sitting two rows ahead of you put on too much perfume this morning. Is this diffusion, osmosis or active transport?

• diffusion

• osmosis

• active transport