Units and Standards. In science, numbers aren’t just numbers. They need a unit. We use standards for this unit. A standard is: a basis for comparison.
THE METRIC SYSTEM
June 2009 Paper 3
1.2 Measurements and Uncertainties
June 2009 Paper 3. 1)a) b)P(walk) = 37 100 WalkCarOtherTotal Boy15251454 Girl2281646 Total373330100.
WHY DO WE USE THE METRIC SYSTEM? Almost all other countries are using the metric system Scientists need a universal way to communicate data (SI.
Standard Form Form 4
A short-hand way of writing large numbers without writing all of the zeros.
SCIENTIFIC NOTATION. Scientific Notation: a short-hand way of writing large numbers or small numbers without writing all of the zeros.
