Multiple choice

The process of separation used in this example is called ___________.

Directions: Read the given passage carefully and then complete the statement given below:

Shreya went for a picnic to the forest reserves. They ran out of water and her father collected water from a stream nearby. The water was slightly muddy and her father told her to wait before they could drink it. Soon impurities settled at the bottom when muddy water was kept still. The clear water was then poured off from the top.

  1. distillation

  2. decantation

  3. winnowing

  4. filteration

  5. evporation
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

It is correct. Grains can be separated from dirt by sedimentation and decantation. When water is added to the grains, the dust and dirt dissolve in the water, making it muddy. Thus, the dirt and grains are separated. The grains settle at the bottom because they are heavier. This process of the settling of the heavier substance is called sedimentation. Now, the grains can be separated by simply pouring out the water. This process is called decantation.

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