tables and graphs

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“I CAN” Statements Tables and Graphs

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• Recognize the parts of a data table [L1]

• Construct a data table [L2]

• Recognize the 3 main types of graphs [L1]

• Memorize which axis is to be used to represent variables [L1]

• Predict -given specific data- which type of graph is more appropriate to use [L2]

• Graph data in its appropriate form/type [L2]

• Distinguish between extrapolation and interpolation [L2]

Rows

GRID

ColumnsCELL

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Amount of Rain (cm) Wt of Fruit (kg)

45 125

55 140

60 150

70 280

75 310

80 350

90 350

Impact of Rain on Weight harvested

Title Headers Units

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Area and Depth of Oceans

Title

Ocean Area (Mkm^2) Avg Depth (km)

Pacific 166 4.2

Atlantic 82 3.7

Indian 73 3.9

Arctic 14 1.2

Units

“Global Ocean” is sometimes divided in 5:Antarctic Ocean 5

Headers

BAR GRAPHalso known as HISTOGRAM

• Better suited for data collected by counting

• Shows a relationship b/t 2 groups, but one does not affect necessarily the other

• One set of data is divided into categories, events, places…

• Examples sales/profits per month number of earthquakes and location

over a 4 weeks period average rainfall

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7

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PIE / CIRCLE GRAPH

• Represents the different parts of a whole / how categories of information compare to each other

•Example: chemical composition of our atmosphere

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Pie GraphComposition of Earth’s Crust

2.5%

5%

47% 27%

3.5%

2%

3%

8%

1.5%

LINE GRAPH

• Continuous set of data showing how one factor [variable] affects another• IMPORTANT CONVENTION to remember

•X = horizontal = input = independent Δ•Y = vertical = output = dependent Δ

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LINE GRAPH

•Best-fit line rather than data connected “dot-to-dot”

• BFL is a straight line or smooth curve that satisfies most of the points.

• it will show TRENDS that allows to make predictions

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“Dot-to-dot” Best-fit line

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Relationship b/t Depth of Ocean floor and Age of Formation

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The final graph is also known as Standard Graph

From a Standard graph, one can further find information that was NOT collected during experimentation.

Interpolation: values that fall within the collected data

Extrapolation: values that fall outside the collected data

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The independent variable is always placed on the vertical axis

A. True

B. False

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?Which one would you trust the most?

Extrapolation or Interpolation?18

Which type of graph is best suited to display the amount of iron ore in four

different countries?

A. Bar

B. Pie

C. Line

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The data are from an experiment to find out the speed of an object dropped from a tall building. Which type of graph would be the best way to display this information

A. Bar

B. Pie

C. Line

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According to these data, about how fast would the object be dropping after 11 seconds?

A. 90 m/s

B. 100 m/s

C. 110 m/s

D. 120 m/s21

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PICK A STUDENTWhat independent variable could have been added to this experiment?

Which type of graph is best suited to display the major gases found

in Earth’s atmosphere?

A. Bar

B. Pie

C. Line

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Which type of graph is best suited to display the relationship between distance traveled

and amount of gas used?

A. Bar

B. Pie

C. Line

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