graphing your data
DESCRIPTION
Graphing Your Data. Showing patterns & trends. A picture is worth a thousand words !. Types of data (information). Variables what you measure in an experiment dependent variable measured variable unpredictable change : we don’t know how it will change until we do the experiment Y-axis - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Graphing Your Data](https://reader035.vdocument.in/reader035/viewer/2022062310/56815f21550346895dcdedf3/html5/thumbnails/1.jpg)
Graphing Your Data
Showing patterns & trends
A picture is worth a
thousand words!
![Page 2: Graphing Your Data](https://reader035.vdocument.in/reader035/viewer/2022062310/56815f21550346895dcdedf3/html5/thumbnails/2.jpg)
Variables what you measure in an experiment dependent variable
measured variable unpredictable change: we don’t know how it
will change until we do the experiment Y-axis
independent variable manipulated variable predictable change: it only
changes because we chose how it would change
X-axis
Types of data (information)
The effect of _____________
on _____________
INDEPENDENT
DEPENDENT
![Page 3: Graphing Your Data](https://reader035.vdocument.in/reader035/viewer/2022062310/56815f21550346895dcdedf3/html5/thumbnails/3.jpg)
Examples of experiments 1 How does fertilizer affect the growth rate
of plants? we set up an experiment testing different
amounts of fertilizer on different plants & measuring the growth (height) of the plants: dependent variable (Y-axis)?
height of plants independent variable (X-axis)?
amount of fertilizer
The effect of _____________
on _____________
Amount of Fertilizer
Height of Plants
![Page 4: Graphing Your Data](https://reader035.vdocument.in/reader035/viewer/2022062310/56815f21550346895dcdedf3/html5/thumbnails/4.jpg)
Examples of experiments 2 How does exercise affect heart rate of
10th grade student? we set up an experiment testing
different lengths of time of exercise (minutes) on the heart rate of students: dependent variable (Y-axis)?
heart rate independent variable (X-axis)?
minutes of exercise
The effect of _____________
on _____________
Exercise
Heart Rate
![Page 5: Graphing Your Data](https://reader035.vdocument.in/reader035/viewer/2022062310/56815f21550346895dcdedf3/html5/thumbnails/5.jpg)
Examples of experiments 3 What’s the favorite drink of students?
we set up an experiment surveying students and asking which is their favorite drink : dependent variable (Y-axis)?
number of students independent variable (X-axis)?
type of drinkThe effect of _____________
on _____________
Type of Drink
How many students chose it
![Page 6: Graphing Your Data](https://reader035.vdocument.in/reader035/viewer/2022062310/56815f21550346895dcdedf3/html5/thumbnails/6.jpg)
Making pictures out of data Graphs
line graphs graphing data that shows continuous change
bar graphs (or histograms) graphing data that is in disconnected groups
How’s a critterto choose?
![Page 7: Graphing Your Data](https://reader035.vdocument.in/reader035/viewer/2022062310/56815f21550346895dcdedf3/html5/thumbnails/7.jpg)
How does elevation affect temperature?
elevation
tem
pera
ture
5
10
15
20
25
30
0 500 1000 1500 2000 25000
elevation (feet above sea level)
temp.(°C)
0 30500 251000 201500 152000 102500 5
1200 ft?
18
Line graph!
1200
![Page 8: Graphing Your Data](https://reader035.vdocument.in/reader035/viewer/2022062310/56815f21550346895dcdedf3/html5/thumbnails/8.jpg)
Which drink do you like best?
type of drink
num
ber o
f stu
dent
s
1
2
3
4
5
6
Coke Pepsi water tea Gatorade0
drink numberCoke 1Pepsi 1Water 4
Iced tea 4Gatorade 3
Red Bull?
RBRB
Bar graph!
![Page 9: Graphing Your Data](https://reader035.vdocument.in/reader035/viewer/2022062310/56815f21550346895dcdedf3/html5/thumbnails/9.jpg)
Any Questions??