Passive Transport: Diffusion or Osmosis

Diffusion and osmosis are both examples of passive transport. This means substances move from areas of high concentration to low concentration. Osmosis is the movement of water while diffusion is the movement of other substances.

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When you put raisin in water, the raisin gets puffed up.

• diffusion

• osmosis

Tags

NGSS.MS-LS2-1

Plants absorb water from their roots.

• diffusion

• osmosis

Tags

NGSS.MS-LS2-1

If you are there in a bath tub or in water for long your finger gets pruned. Finger skin absorbs water and gets expanded.

• diffusion

• osmosis

You can smell perfume because the oils spread out in the air and travel to your nose.

• diffusion

• osmosis

If you leave a soda bottle open, the carbon dioxide bubbles will eventually leave and the soda will be flat.

• diffusion

• osmosis

When you put a tea bag in hot water, the water goes from completely clear to brown or green.

• diffusion

• osmosis

When we are dehydrated it means that are cells are lacking water. When we drink a lot of water, we are reaching equilibrium in our cells by filling them back up with water.

• osmosis

• diffusion

Tags

NGSS.MS-LS2-1

When you put salt on a snail, the liquid inside them comes out and tries to dilute the salt concentration and maintain the mucus layer, and hence, they end up shedding water. Too much salt and slugs or snails will dry up and die!

• osmosis

• diffusion

Tags

NGSS.MS-LS2-1