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Bellringer 10/30/2012. The table shows the growth of a bamboo plant. Which statement describes the growth of the bamboo plant? The plant grows about one foot per day. The plant will stop growing after Day 11. The plant grew the fastest between Days 1 and 2. - PowerPoint PPT Presentation
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1. The table shows the growth of a bamboo plant. Which statement describes the growth of the bamboo plant?
a. The plant grows about one foot per day.
b. The plant will stop growing after Day 11.
c. The plant grew the fastest between Days 1 and 2.
d. The plant grew the fastest on the last 3 days in the table.
Bellringer 10/30/2012
Bellringer 10/30/2012
Let’s Begin our notes!
• When we take our notes:
• There will be NO talking.• If it is in red, we write it down.• Mr. Vo should see all pencils moving across
the paper, all mouths closed, all backs straight in the desks.
Achievers ROAD Check
• What is a table?
• Why do scientists use tables?
• What are some common trends?
Graphs (1)have the same trends as tables.
0 1 2 3 4 5 6 7 8 9 100
1
2
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Time (seconds)
Dist
ance
(met
ers)
There are 3 main types of graphs in science.
• A line graph (2)shows changes over time.
• A bar graph (3)shows how two groups compare to each other.
There are 3 main types of graphs in science.
• A pie chart (4)is used to show percentages or data as “part of a whole”
The x-axis (5) lies down, the y-axis (6)stands up. Always understand what your graph’s axes are comparing.
Basketball Skillz
Book
Sm
arts
Mon
ey e
arne
d
Books Read
Label your graphs!y
- axi
s
x - axis
Dep
ende
nt
varia
ble
Independent variable
Title Title
ROAD CHECKA scientist studied 160 bird eggs and counted the number of eggs in each nest. Approximately, how many nests contained 4 or more eggs?A. 55B. 80C. 97D. 115
ROAD CHECKA scientist studied 160 bird eggs and counted the number of eggs in each nest. Approximately, how many nests contained 4 or more eggs?A. 55B. 80C. 97D. 115
What 2 things are we comparing?
Hours of TV watched
____
____
__
Amou
nt o
f tim
e sp
ent o
utsi
de
____________
Independent vs. Dependent Variables
• Independent variables: the part of the experiment that (7)I can change, that (8)I have control over. • The (9)manipulated variable
• Dependent variable: the part of the experiment that (10)responds to what I have changed• The (11)responding variable
Bar Graphs
• Used for data that is (12)categorized or grouped
• x-axis is (13) not ordered• y-axis is usually a (14)percentage, frequency,
or whole number
Example:
Line Graphs• Used to show how
the (15)dependent variable changes in response to the (16)independent variable
• Points on the line graph are (17)connected because the values (18)(numbers) from each observation (19)depends on the values from the one before it
Pie Graphs
• Used to show (20)percentages or data as (21)“parts of a whole.”
(22)To read a graph, draw a line UP from your x-axis and ACROSS from your y-axis.
Basketball Skill Level
0 2 4 6 8 100
100000
200000
300000
400000
500000
600000
700000
800000
900000
1000000
Mon
ey e
arne
d
State Test Questions
The More Education, the More IncomeW
eekl
y Ea
rnin
gs $
$$
Education After Middle School
• What is the dependent variable?________________________
• What is the independent variable?_______________________
• What can you conclude from this? _________________________________________________________________________________________________
Student Heights in Mr. Vo’s _____ Period Class
# of
Stu
dent
s
Height in Inches
• What is the dependent variable?________________________
• What is the independent variable?_______________________
• What can you conclude from this? _________________________________________________________________________________________________