write you homework – get it stamped! update your table of contents for today! complete the vocab...

Write you homework – get it stamped! Update your Table of Contents for today! Complete the Vocab Practice Quiz 2 – you may

work together and use your notes! When you have completed the quiz, use page

A64 in your science book complete the “Divisions of Time Section” ONLY on the top of your note guide!

Warm-UpWarm-Up

Date Session#

Activity Page#

12/9 & 12/10

11 Vocabulary Practice Quiz 2 22

The Geologic Time Scale Note Guide 23

Now that we have all of these pieces of evidence, we are able to reconstruct a timeline of Earth’s History…we call this timeline the Geologic Time Scale.

Earth’s HistoryEarth’s History Continued… Continued…

Geologic Time Scale – a timeline of Earth’s History divided by major events or changes on Earth

What do we call these major events or changes?

Geologic Time ScaleGeologic Time Scale

Catastrophic Events – events that cause major destruction or change life completely

Examples: Mass extinctions Ice Ages Meteor strikes Major volcanic eruptions

Catastrophic EventsCatastrophic Events

1. Hadean 2. Archean 3. Proterozoic 4. Phanerozoic

The first 3 eons make up Precambrian Time which is 90% of Earth’s History! It lasted nearly 4 billion years of Earth’s 4.6 billion year history!

MAIN EVENTS:After Earth & its moon were formed, there

was… Major volcanic activity leading to the

formation of Earth’s Crust! Oxygen levels in the atmosphere rise! Single-celled micro-organisms; simple

multi-celled organisms, like sponges & jellyfish, in the ocean towards the end.

NO animals or plants on land!

Explosion of Life!Contains 3 Eras:

◦Paleozoic Era – “Age of Amphibians”

◦Mesozoic Era – “Age of Dinosaurs”◦Cenozoic Era – “Age of Mammals”

544 mya – 248 mya More diverse marine life such as fish and

amphibians developed Life begins moving onto land towards the

end of this era Reptiles, insects, and simple land plants

like ferns developed Pangaea exists about 280 million years

ago Ends with a Mass Extinction possibly from

a meteor strike (???) – kills 90% of all ocean species and 70% of land dwellers!

248 mya – 65 mya Pangaea begins to break apart about

200 million years ago! Dinosaurs rule the land! Small early mammals, birds, and more

complex flowering plants and flying insects are seen

Ends with another Mass Extinction due to meteor strike off the coast of Mexico

Dust cloud blocked sunlight, killed plant life and affected the food

chain

65 mya – Present

First primates appear Primitive whales enter the ocean Larger land mammals like horses, pigs

(have hooves) cats, dogs, bears Animals developed migration techniques

and coevolution patterns Quaternary Period = the past 2 million yrs

◦Last Ice Age ends◦1st modern humans leading to Homo Sapiens and modern civilizations

You will receive a card with an event from the Geologic Time Scale

First you must decide which of the 4 corners you belong – Check your note guide!

And then you must put yourselves in order within your era!

Human Geologic TimelineHuman Geologic Timeline

Precambrian Time = Hadean, Archean & Proterozoic Eons

Remember: This is 90% of Earth’s History! Earth formed (4.6 billion years ago) Earth’s moon forms (4.5 billion years ago) Earth’s crust formed (3.8 billion years ago) Single-celled organisms (1.4 billion years ago) Oxygen levels rise due to photosynthetic

organisms Sponges (600 million years ago) Jellyfish (570 million years ago)

Geologic Time Scale OrderGeologic Time Scale Order

Multi-celled organisms in the ocean only towards the end!

Phanerozoic Eon – Paleozoic Era Pangaea begins to form should be in this era!

Fish & Amphibians diversify marine life

Reptiles! Early insects (like spiders & centipedes) First land plants like ferns developed ENDED WITH…?

Geologic Time Scale Geologic Time Scale OrderOrder

Phanerozoic Eon – Mesozoic Era Pangaea begins to break up should be first in this era!

Dinosaurs rule the land! Small early mammals & birds More complex flowering plants & flying insects are seen

ENDED WITH…?

Geologic Time Scale Geologic Time Scale OrderOrder

Phanerozoic Eon – Cenozoic Era First primates appear Primitive whales enter the ocean Larger land mammals like horses, pigs (have

hooves) Then cats, dogs & bears Animals develop migration techniques &

coevolution patterns Last Ice Age ended (11,000 years ago) “Modern” humans – Neanderthal Man Homo Sapiens (17,000 years ago-last species of

human to survive extinction) Modern Civilization (10,000 years ago)

Geologic Time Scale OrderGeologic Time Scale Order

The Geologic Time Scale is divided by catastrophic events; not equal time segments!

In general, life goes from simple to more complex!

Most life occurs towards the end of the Geologic Time Scale!

Geologic Time Scale Geologic Time Scale SummarySummary

Fill the video guide in for a completion grade while you watch the movie…make sure your answers are also accurate!◦ 100 = complete◦ 70 = incomplete

The Day the Mesozoic DiedThe Day the Mesozoic Died

Study for your Vocabulary Quiz next class! Sessions 7-10 Formal Grade

HomeworkHomework

Write your homework – get it stamped! Update your Table of Contents for today! READ page A63 in your science book

complete the “Earth’s History Timeline” and the Quick Write Prompt beneath it – everyone will share their idea!

Warm-UpWarm-Up

Date Session#

Activity Page#

12/11 & 12/12

12 Earth’s History Timeline Analogy 24

The Geologic Time Scale is divided by catastrophic events; not equal time segments!

In general, life goes from simple to more complex!

Most life occurs towards the end of the Geologic Time Scale!

Geologic Time Scale Geologic Time Scale SummarySummary

The last comparison put Earth’s Geologic Time Scale into 1 year – but what if we put it into 1 day?

http://www.youtube.com/watch?v=H2_6cqa2cP4

The Clock of ErasThe Clock of Eras

You will be creating a miniature children’s book to tell the story of Geologic Time in a child friendly way

You can include either the entire story from your note guide or a specific portion and of course, colorful illustrations including a decorative cover and creative title!

Helpful Website:http://www.fossils-facts-and-finds.com/geologic_time_line.html

Once upon a time, 4.6 billion years ago, the Earth was born. The world looked very different than it does today! At first, there weren’t even any plants and animals, and certainly no humans…can you imagine?

And then…

Start it off…Start it off…

It was time for your quiz! Lets go through these words one last time quickly before your quiz!

Quick Vocab ReviewQuick Vocab Review

Round 1Round 1 Evidence of Earth’s Age

Part 1- First Column

The time it takes for 50% of a radioactive

material to decay

11

Exact age of something – a

number

22

A whole, or part of a whole

organism that is original remains

33

Something that causes rock layers to be missing or

messed up

44

Evidence left behind from an organism like a

foot print

55

A substance that is unstable

and decays

66

Information about the climate based on the amount of

rainfall

77

Under normal conditions, the oldest rock is on the bottom and the youngest is

on the top

88

Crack or shift in rocks that usually occurs due to an

earthquake

99

A common organism that lived during a

specific time – used as a reference to date

other things

1010

Round 2Round 2 Evidence of Earth’s Age

Part 2

Magma that pushed through the

rock layers and hardens

11

Age compared to the ages of other things – general

description

22

A sample that gives up to 800,000 years of information about climate and events of

the past

33

A type of fossil that looks identical to the original, but it

is only a copy

44

Remains of a preserved organism

(most general definition)

55

Used to figure out the absolute age of something very old

or non-living

66

A version of an element that is

used in radioactive dating

77

Used to figure out the absolute age of

something that was once living or younger than 60,000 years old

88

Folding of rock layers due to

erosion, gravity, or other factors

99

The type of fossil that is an imprint of the organism

1010

Round 3Round 3 Geologic Time Scale

(no, they aren’t on the quiz today, but they will be on the Unit Test next week!)

Smallest unit of time on the

timeline of Earth’s History

11

Most recent era; “Age of the Mammals”

22

The first 3 Eons of Earth’s History; about 4 billion

years

33

Something that causes major destruction or changes life completely

44

Second largest segment of time;

broken into periods

55

Middle era; “Age of the Dinosaurs”

66

Largest segment of

time; broken into eras

77

A timeline of Earth’s History separated by major events

88

Third largest segment of time;

broken into epochs

99

Ancient era; “Age of

Amphibians”

1010

Set up the “Great Wall of Cheating” with the folders!

Put everything away except your pencil! Make sure you put your name on the

quiz! WHEN YOU FINISH:

◦Put the quiz in the basket and work on your Children’s Book

◦ If you finish your book, turn it in, if not then finish it for homework!

Quiz TimeQuiz Time

After the Quiz, Work After the Quiz, Work on Your Children’s on Your Children’s BookBook

The above book is a published example!!

Look at the examples provided in the classroom!

Your children’s book should tell the story of Geologic Time in a child friendly way & creative but accurate way

You can include the entire story from your note guide or just a portion, but it must include colorful illustrations including a decorative cover and creative title!

Complete your Children’s Book if you did not complete it in class for next class!

Unit Test: A-day, Wednesday, 12/17 B-day, Thursday, 12/18

◦ Start studying…all sessions of this unit, 1-12

HomeworkHomework