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.

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1

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8

9

10

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

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100000

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800000

900000

1000000

Mon

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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? _________________________________________________________________________________________________