COMPLETE WEDNESDAY BELL RINGER
SILENTLY
1. WHAT ARE THE 3 COMPONENTS OF A HYPOTHESIS?
2.WHAT IS THE SECOND STEP OF THE SCIENTIFIC METHOD?
LAB TOMORROW!!!!
HOW TO CONSTRUCT A GRAPH
1. IDENTIFY VARIABLE
2. DETERMINE THE GRAPH SCALE
3. PLOT THE DATA POINTS
4. DRAW THE GRAPH
5. TITLE THE GRAPH
Independent variable
1. IDENTIFY
VARIABLES
• Factor that is varied (changed,
tested) in an experiment
• Label along the x-axis
Dependent variable
• Factor that is measured in an
experiment
• Label along the y-axis
2. DETERMINE THE GRAPH SCALE
a) DETERMINE THE (RANGE) NUMERIC VALUE OF
DEPENDENT VARIABLE
b) ESTABLISH A SCALE THAT BEST FITS THE RANGE
OF THIS VARIABLE
c) SPREAD THE GRAPH TO USE THE MOST AVAILABLE
SPACE
d) BE CONSISTENT THROUGHOUT THE AXIS SCALE
2. DETERMINE THE GRAPH SCALE
What do we
need to find
before we can
determine our
graph scale?
Study Time vs. Test Grades
Study Time
Test Grade
2
68
0
50
6
97
3
79
1
66
4
88
1
70
2
73
5
92
2.5
77
3. PLOT THE
DATA
POINTS
(FOR LINE
GRAPH)
a)PLOT EACH DATA VALUE ON THE GRAPH
b)IF MULTIPLE SETS OF DATA ARE BEING
PLOTTED, USE DIFFERENT COLORS AND
INCLUDE A KEY
4. & 5. DRAW THE GRAPH AND ADD TITLE
Remember TAILS:
T – title
A – axis
I – increments
L – labels (independent and dependent with units)
S – scale
Study Time vs. Test Grades
DETERMINE IF THERE’S A RELATIONSHIP IN
THE VARIABLES
Direct
Indirect
Constant
LINE PLOT
STEM
AND LEAF
HISTOGRAM
BAR
GRAPH
LINE
GRAPH
PIE
CHART
PICTOGRAPH
SCATTERPLOT