unit 3: earth the planet of life – the 4 “spheres” “dry-lab” l-1023 earth over time

Unit 3: Earth the Planet of Life – the 4 “Spheres”

“Dry-Lab” L-1023Earth over Time

ACT – Data Representation Build & Study Model

U3: The 4 “Spheres”L1023 – ACT (Data

Representation Dry Lab)

An artist’s conception of the Earth at

_________4.5 BYA_________




_________4.0 BYA_________




_________3.5 BYA_________




_________3.0 BYA_________




_________2.5 BYA_________


_________2.0 BYA_________



A photograph of Moeraki

Boulder – New Zealand 1st

Photosynthetic plants (protists)

on Earth at _________1.5 BYA_________



A photograph of Deep sea vent –

Marianna Trench Pacific

Ocean Multi-cellular

Marine Invertebrates

“rule” on Earth at

_________1.0 BYA_________



An artist rendering

Multi-cellular Marine & Land Invertebrates

“rule” on Earth at

_________0.4 – 0.5 BYA

_________



An artist renderingComplex

vertebrates & dinosaurs rule the Earth at

_________0.15 – 0.17 BYA

_________



An artist renderingComplex

vertebrates & dinosaurs rule the Earth at

_________0.001 BYA_________



Let’s also do some basic math and

algebra review.



First…

What is this fraction expressed as a decimal to two places?



½ = _____

First…

Expressed as a decimal to two places;one-half is equivalent to…



½ = 0.50

Next…

What is this decimal value expressed as;a PERCENT to two places ?



½ = 0.50

Next…

Expressed as a PERCENT to two places – one-half is equivalent to…



½ = 0.50 = 50.00 %

In your teams…

In the next 4 minutes…express the following as a; PERCENT to THREE decimal places…



¼ = ____ %

⅟₁₀ = ____%

⅛ = ____ %http://www.online-stopwatch.com/full-screen-stopwatch/

http://www.online-stopwatch.com/full-screen-stopwatch/

In your teams…




¼ =

⅟₁₀ =______%

⅛ = ______ %

25.000 %

In your teams…




¼ =

⅟₁₀ =

⅛ = ______ %

25.000 %

10.000 %

In your teams…




¼ =

⅟₁₀ =

⅛ =

25.000 %

10.000 %

12.500 %

In another area we need to review the “constructs”

of “rectilinear

graphs”



For a rectilinear graph or a coordinate graph we

need a pair of axis.

Can you name the horizontal

axis?



The horizontal

axis is called the “X” axis.



X

For a rectilinear graph - can you name

the vertical axis?



The vertical axis – is

called the “Y” axis.



X

Y

When someone wishes to

plot a “data point” on a rectilinear graph –or- coordinate

graph…

… it is done with

“coordinates”



X

Y

The “coordinates

” tell us where to put

the data point. This

type of graph

usually has at least TWO variables for

each data point.



X

Y

Either the values for “X”

are “dependent”

variables making “Y”

values “Independent” variables…, or it can be

just the opposite – the

scientist decides.



X

Y

Therefore; if “Y” is

changing (dependent

variable) because of

what you are specifically doing as a scientist in the study

(independent variable);



X

Y

Another way to say this is:

“Y” (dependent variable) is the “effect” while X”

(independent variable) is

the “cause”



X

Y

we link them together by using what is called an “ordered pair.”



X

Y

(___, ___)

For an “ordered pair” – we call the value for “X” the ….?



X

Y

(___, ___)

For an “ordered pair” – we call the value for “X” the ….

… abscissa



X

Y

(___, ___)

For an “ordered pair” – we call the value for “Y” the ….?



X

Y

(___, ___)

For an “ordered pair” – we call the value for “Y” the ….

… ordinate.



X

Y

(___, ___)

What is the abscissa and ordinate for the ordered pair on the graph?



X

Y

(_X, _Y_)

What is the abscissa and ordinate for the ordered pair on the graph?



X

Y

( 3 , 4 )

As practice for the upcoming L1023 Dry Lab; let’s try one of the ordered pair data points.



X

Y

( 3 , 4 )

Given this part of the table:



X

Y

BYA

4.5 4.0CO2 80% 20%

N2 10% 35%

Time (billions of years ago) - BYA

Gas

Co

mp

osi

tio

n P

erce

nta

ge

(%)

50%

30%

10%

70%

4.5 3.5

Given this part of the table:

… plot the first two ordered pairs of N2(g) (nitrogen gas)



X

Y

BYA

4.5 4.0CO2 80% 20%

N2 10% 35%

Time (billions of years ago) - BYA

Gas

Co

mp

osi

tio

n P

erce

nta

ge

(%)

50%

30%

10%

70%

4.5 3.5

What makes a “cumulative” graph different – is the data points “cumulate” (add together)



X

Y

BYA

4.5 4.0CO2 80% 20%

N2 10% 35% Time (billions of years ago) - BYA

Gas

Co

mp

osi

tio

n P

erce

nta

ge

(%)

50%

30%

10%

70%

4.5 3.5

If you are asked to also plot the carbon dioxide gas (CO2) ordered pairs for the same times we’d get…



X

Y

BYA

4.5 4.0CO2 80% 20%


Gas

Co

mp

osi

tio

n P

erce

nta

ge

(%)

50%

30%

10%

70%

4.5 3.5

Carbon dioxide gas (CO2) ordered pairs PLUS Nitrogen gas’ values or ordered pairs…



X

Y

BYA

4.5 4.0CO2 80% 20%


Gas

Co

mp

osi

tio

n P

erce

nta

ge

(%)

50%

30%

10%

70%

4.5 3.5

For 4.5 BYA: Carbon dioxide gas (CO2) is 80%. THAT is added to N2 ‘s 10% to get 90% for the two gases cumulatively!



X

Y

BYA

4.5 4.0CO2 80% 20%


Gas

Co

mp

osi

tio

n P

erce

nta

ge

(%)

50%

30%

10%

70%

4.5 3.5

For 4.0 BYA: Carbon dioxide gas (CO2) is 20%. THAT is added to N2 ‘s 35% to get 55% for the two gases cumulatively!



X

Y

BYA

4.5 4.0CO2 80% 20%


Gas

Co

mp

osi

tio

n P

erce

nta

ge

(%)

50%

30%

10%

70%

4.5 3.5

The nice thing about a “cumulative” graph [is] it can answer a question like:



X

Y

BYA

4.5 4.0CO2 80% 20%


Gas

Co

mp

osi

tio

n P

erce

nta

ge

(%)

50%

30%

10%

70%

4.5 3.5

“Did the two gases CO2 and N2 together decrease in the Earth’s atmosphere 4.0 BYA, and if so… was it either one in particular?



X

Y

BYA

4.5 4.0CO2 80% 20%


Gas

Co

mp

osi

tio

n P

erce

nta

ge

(%)

50%

30%

10%

70%

4.5 3.5

“Did the two gases CO2 and N2 together decrease in the Earth’s atmosphere 4.0 BYA, and if so… was it either one in particular?



X

Y

BYA

4.5 4.0CO2 80% 20%


Gas

Co

mp

osi

tio

n P

erce

nta

ge

(%)

50%

30%

10%

70%

4.5 3.5

Yes, the two combined gases DID decrease. As they went from 90% -to- 55%

Yes, it was the CO2(g) decreased from 80% to 20%

End of this segment

unit 3: earth the planet of life – the 4 “spheres” “dry-lab” l-1023 earth over time

Documents

artists conception

decimal placesu3

decimal value

asa percent

places onehalf

photosynthetic plants

basic math

algebra review