A grain of sand has a mass of approximately 6*10 exponent -2 grams. Earth has a mass of Approximately 6*10exponent 28 grams.
How many times the mass of the grain of sand is the mass of earth?
Earth Mass 6 * 10^28 10^28
__________ = ____________ = _______ = 10^(28 - (-2) ) = 10^30 times
Grain Mass 6 * 10^(-2) 10^(-2)
The mass of grain of sand is 10^-30 times the mass of earth.
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