DIFFUSION AND OSMOSIS by changcheng2

VIEWS: 29 PAGES: 1

									          DIFFUSION AND OSMOSIS – Check Your Understanding

Select 2 of the following scenarios. Cut and paste them into your Scientist
Notebook leaving space after each scenario to demonstrate your understanding
of the scenario.

____________________________________________________________

   1. Mr. Simpson’s yard needs to be fertilized so he went to Lowes and bought
      several bags of lawn fertilizer. He failed to read the directions before
      applying the fertilizer to his lawn. Several weeks after he applied the
      fertilizer, all his grass died. Using your knowledge of osmosis and
      diffusion, explain why his grass died.

___________________________________________________________


   2. Mary and Tommy were playing outside and noticed several slugs crawling
      on the sidewalk. Mary ran inside and grabbed the salt shaker from the
      cabinet and took it outside and handed it to Tommy. Tommy dumped salt
      all over the slugs and they shriveled up. Using your knowledge of
      osmosis and diffusion, explain why the slugs shriveled up.

____________________________________________________________


   3. Drought has hit the state of Tennessee. Flowers are dying, crops are
      dying and trees are losing their leaves. Using your knowledge of osmosis
      and diffusion, explain the effect of the drought on the flowers, crops and
      trees.


____________________________________________________________


   4. Using your knowledge of osmosis and diffusion, explain why salt water
      fish cannot live in fresh water and why fresh water fish cannot live in salt
      water.


________________________________________________________________

								
To top