Review for the Final Exam

							                             Review for the Final Exam
Metric System:


Kilo            Hecto           Deka             Meter           Deci             Centi           milli
                                                 Liter
                                                 Gram
Means 1,000     Means 100       Means 10                         Means 0.1        Means 0,01      Means 0.001


0.025 km        0.25 hm         2.5 dam          25 m            250 dm           2,500 cm        25,000 mm



Measurement tools and units

Tool                                  Quantity                               Unit
Scale                                 Weight or force                        Newtons
Balance                               Mass                                   grams
Meter stick                           Distance                               meters
Barometer                             Air pressure                           Millibars or inches of Hg
Thermometer                           Temperature                            Degrees celsius
Stopwatch                             Time                                   Seconds or minutes or hours
Meterstick and stop watch             Speed or velocity                      Meters / second


Weather

Thunderstorms with hail come from:
             low pressure system bring a variety of weather including clouds, precipitation and storms
             cold fronts bring brief storms
             winds from the north, northwest or northeast are associated with cold front and cold air
                     arriving
             Cumulonimbus clouds are associated with thunderstorms, lightning, hail and tornadoes


The Bohr model on the board was Lithium
            3+ means 3 protons
            4 n means 4 neutrons
            each dot on the shells represent electrons (there were 3)
            the mass = protons + neutron, so it was 7
            the atomic number = protons, so 3
            Li is in family 1 because it has 1 outside (valence) electron
            Li is in period 2 because it has 2 electron shells
            Li is a metal, you can tell by its family (1 – 12 are all metals) or its 1 outside electron (metals
                     have 1, 2, or 3)