Large glass measuring cup (2 cups or bigger)
Blue food coloring
Vegetable oil (any type of cooking oil)
Liquid dish detergent
Procedure:
(4 points for each question)
Fill the cup two-thirds of the way with water. Add a few drops of blue food coloring to make your “ocean.”
Pour 1/3 cup of oil into the ocean.
Answer the following questions:
What happens to the oil when you first pour it in?
Why does this happen?
What kinds of animals would be most affected by an oil spill at the beginning? Why?
Use a spoon to stir the oil for 30 seconds.
Answer the following questions:
What natural action stirs the real ocean?
What happened to the oil?
Even if you can’t see it, is all the oil still in your ocean?
Which animals in the ocean become affected after wave and current action causes some of the oil to settle to the bottom, or be absorbed into the water?
Add a splash of dish detergent to the mixture and stir.
Answer the following questions:
What happened to the oil? Is it all still in the ocean?
Sometimes cleanup efforts involve dumping a soap mixture over a spill area. Why is this done?
What might be a negative effect of dumping the soap?
Submit this assignment to your teacher when you are finished.
NextPrevious
Answer: Osmosis
Explanation:
Osmosis is a type of simple diffusion in which water molecules diffuse through a selectively permeable membrane from areas of high water concentration to areas of lower water concentration.
Permeability ratings for moisture in building materials. The material's resistance to moisture movement increases with decreasing perm numbers.
Building materials are said to be resistant to moisture migration through the material if their perm rating is less than 1. These function well as vapour barriers.
Building materials are thought to transmit moisture more readily from warm to cold surfaces if their perm rating is greater than 1. These are inadequate vapour barriers.
The first material type in this case is "tar paper," or wet Asphalt felt. It is employed as a sheathing wrap beneath siding and roofing. Its benefits include its moderate resistance to liquid water, ability to both absorb and store water, and high permeability when damp. Its drawbacks include its propensity for tearing and degradation when exposed to sunshine. It has a 5 perm rating. It is advised if at least 15 pounds of material is used, that it be utilised with a rain screen, and that it be an excellent alternative for all types of siding. Never rely on as an air barrier.
Plywood, the second material kind, is utilised for sheathing walls and roofs. Its structural substance, which depending on the coating absorbs and stores water, is a benefit. Its drawbacks include the possibility that it will act as a buffer by gradually absorbing and releasing moisture. It has a perm rating of 1 to 30.The majority of building does not use vapour barriers exclusively.The relative humidity of the surrounding air affects permeability.
To know more about the similar questions on 'permeability' click here:
#SPJ2
Answer:
Virchow is credited with several very important discoveries. His most widely known scientific contribution is his cell theory, which built on the work of Theodor Schwann. He was one of the first to accept the work of Robert Remak, who showed the origins of cells was the division of pre-existing cells.
Explanation:
if it helped please follow me on brainly
Answer:
Rudolf Virchow's most widely known scientific contribution is the cell theory, which built on the work of Theodor Schwann. He was one of the first to accept the work of Robert Remak, who showed the origins of cells was the division of pre-existing cells.
Explanation:
Hope this helps :)
The correct answer is (c.) The statement that says: Carbohydrates are large molecules made p of monosaccharides and are used by organisms for energy storage, best describes the structure and the function of a carbohydrate.
Answer:
The answer is:
Carbohydrates are large molecules made up of monosaccharides and are used by organisms for energy storage.
Explanation: