# What is science notation?

$\text{Scientific notation}$ is the use of exponents, typically as powers of 10.
Suppose we made a measurement of $0.000560$,,,there are THREE significant figures but writing the number down as is INVITES error. Alternatively we could use powers of 10...
$0.000560 \equiv 5.60 \times {10}^{-} 4$...to give a number that is a bit more accessible in scientific notation. If you have doubts, plug the numbers into your calculator, and then use them...the calculator will convert them.