Why are Significant Figures Important?

Which of these two devices is most precise?

• NASA balance

• Toy balance

What place holder does the last 2 in the answer represent?  (i.e. hundrecths, thousands, etc.)

• thousandth

• tenth

• billionth

• millionth

Are all of the numbers in the answer for the density believable?

• Yes

• No

How many sig figs can the final anser have?

• 4

• 1

• 2

Could you tell exactly where they are (corner of Mott and Bleeker) from the two descriptions that were given?

• Because their descriptions were not precise you cannot tell exactly where they are.

• Because their descriptions were very vague it's easy to tell exactly where they are.