Chapter 1

explains WHY something happens alot more than an educated guess being questioned & examined written based on data

describes a process in nature has to be tested predicts

explain observations repeatable experiments predict results

title purpose/intro methods results discussiob

shows change connect data points title scale axis labels (units) *can estimate values not listed*

(x-axis) you control how it changes (has an affect on the dependent variable)

y-axis variable that changes in the independent variable

compare values of items fir individual events showing single values colored scale axis label unit ( ) title

visualize parts of a whole title colored labeld (key or legend) percentage

1) any # that isnt 0 (1-9) is ALWAYS sig figs 2) any 0 between non-zero #’s (1-9) is slways sig fig 3) any zeros at the beginning or end of a # is NOT sig figs

how close a measurement is to the true value ( target)

how exact something you are measuring

kilo hecto deka one/base deci centi mili

1) consistency 2) prefixes 3) easier conversions

based on observation

meter-m

second-s

kelvin-k

ampere-A

mole-mol

kilogram-kg

candela-cd