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