Middle School

The mass of a grain of sand is approximately [tex]2.8 \times 10^{-11}[/tex] grams.

Select from the drop-down menu to correctly complete the statement:

The mass of a grain of sand is approximately [tex]2.8 \times 10^{-8}[/tex] ______.

Answer Choices:
A. Milligram
B. Gram
C. Kilogram

Answer :

The number is made 1,000 times greater and so the units must be made 1,000 times smaller. The answer is "A" milligrams.


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