Change Types of Graphs

Change Change occurs when the properties or characteristics of a part of the environment have been altered. Humans can cause rapid and large scale change. Cyclic Changes: changes that repeat in time and space Prediction – a type of inference about the conditions and behavior of the environment in the future. Cyclic changes can be predicted. Not all change is cyclic Examples: seasons, tides, lunar phases An example of noncyclic change is the occurrence of Earthquakes Ocean tides The phases of the moon The seasons of the year

Cyclic Graphs Predictable variables that repeat Examples: Seasons, lunar phases, tides Predator prey relationships

Rate of Change Rate of Change: how much a measurable aspect of the environment is altered (changed) over a given time. This can be calculate – the equation is on page 1 of the ESRT. Example: In 1958 a mountain is 3000ft high. In 1998 the same mountain is 2920ft high. Calculate the rate of change. Round to the nearest whole number. Rate of Change = Change in value/Time

Direct Relationship Graphs When one variable increases, the other variable increases. Examples: mass and volume More you study and higher test grades

Indirect Relationship Graphs When one variable increases the other decreases Examples: Temperature and pressure Temperature and density

Graphing What things must all graphs have? A title Appropriate Scale Labels on each axis with necessary units Practice!