Chapter 1: The Scientific Method BY: Emily Kruithof

Units Length Length The longest extent of something measured from end to end. The longest extent of something measured from end to end. Millimeters, centimeters, decimeters, meters, dekameters, hectometers, kilometers Millimeters, centimeters, decimeters, meters, dekameters, hectometers, kilometers Volume Volume Amount of space an object takes up. Amount of space an object takes up. Milliliters, centiliters, deciliters, liters, dekaliters, hectoliters, kiloliters Milliliters, centiliters, deciliters, liters, dekaliters, hectoliters, kiloliters

Units Density Density The amount of matter packed into a given volume. The amount of matter packed into a given volume. g/mL, g/cm 3, g/cc g/mL, g/cm 3, g/cc Density = Mass/Volume Density = Mass/Volume Mass Mass The amount of matter in an object. The amount of matter in an object. Milligrams, centigrams, decigrams, grams, dekagrams, hectograms, kilograms. Milligrams, centigrams, decigrams, grams, dekagrams, hectograms, kilograms. Weight = Mass X Gravitational Force Weight = Mass X Gravitational Force Temperature Temperature The average kinetic velocity of molecules (average speed of molecules) The average kinetic velocity of molecules (average speed of molecules) Celsius, Kelvin, Fahrenheit Celsius, Kelvin, Fahrenheit

Graphs/Data Tables Line Graph Line Graph Used to show effects over a period of time Used to show effects over a period of time Examples: plant growth, Examples: plant growth, Pie Pie Used to compare 2 or more items in percentages Used to compare 2 or more items in percentages Examples: Examples: Bar Bar Used to compare 2 or more items in totals Used to compare 2 or more items in totals

Dimensional Analysis Used to solve many problems by using the relationship of one unit to another Used to solve many problems by using the relationship of one unit to another 12inches = 1foot 12inches = 1foot When you multiply another number by the number 1, you do not change its value, but you might change its unit. When you multiply another number by the number 1, you do not change its value, but you might change its unit. Example: Example: 3hrs to _____ seconds 3hrs to _____ seconds 60min X 60sec X 3hrs = seconds 60min X 60sec X 3hrs = seconds 1hr 1min 1 1hr 1min 1