Multiple choice

Which of the following statements is incorrect?

  1. Sand settles down in water.

  2. Vinegar dissolves in water.

  3. Sugar and water make a transparent solution.

  4. Oil mixes well with water.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Sand is heavier than water and settles down at the bottom. Vinegar and sugar both are water-soluble, but oil is lighter than water and floats on the surface.  

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