1. Precision, Accuracy, Quantitative, Qualitative, Scientific Method, Graphing

2. PRECISIONACCURACY  Repeatability  Check by repeating measurements  Poor precision comes from poor technique  Correctness  Check by using a different method (like in math when you plug your answer back in to see if it’s right)  Poor accuracy results from bad procedure or faulty equipment

4.  Independent variable/manipulated variable – one intentionally changed or manipulated by the experimenter (Remember…I am the man and I changed this..)  Dependent variable/responding variable – one that is observed, recorded, measured, by the experimenter

5. OBSERVATIONCONCLUSION  Information that is obtained using your senses or your senses and an instrument  Statements like: the sky is blue, the ball is round, the wind is blowing, etc.  A judgment that is made based on prior observations  The sky is dark, the wind is blowing, there are big black clouds in the sky…. So it is going to rain.  The beginning information were all observations about the conditions I saw but I concluded that it was going to rain.

6. How to determine scale  Remember that the first data column are the “X” coordinates and the second data column are the “Y” coordinates  Within the data column subtract the lowest data value from the highest data value  The divide that answer by the number of lines that are present on the axis  That answer represents the scale factor for the axis  The origin will not always be zero – it will be the lowest data value in the column

7. # of WashersLength of Rubber band (cm) 014.5 116.7 217 317.2 417.4 517.5 Highest value for Y is 17.5 and lowest value for Y is 14.5 - subtract to get 3 Lets say that your graph paper has 10 lines on the Y axis – divide 3 by 10 to determine the scale which is 0.3 So that means that your origin on the Y axis will be 14.5 and each line will increase by a value of 0.3 So the numbers going up the Y axis will be … 14.5, 14.8, 15.1, etc. You do the same for both axes

8. QUALITATIVEQUANTITATIVE  Purely descriptive in nature  Use the senses to make observations  Color, taste, texture,  MUST have a number  Use some type of instrument or direct counting to make observations  25 cm, 3.5 miles, 0.002 g