Date Session # Activity Page #

12/5,8 11 Diagram warm upWhat is a proxy?

17

Climate Proxy Lab…formal grade 18

12/11-12 12 Life History 19

Geologic Time Notes 20

Geologic Time Scale Model 21

Warm Up:Write a brief history of your life, using major events, not dates to describe it to this point

Homework: complete textbook review questions 71A ?’s 4-14, 72A ?’s 17-20, 73A ?’s 1-5 Put the answers on p22 of your notebookTest 12/18-19, review session 12/17 am/pm

8.E.2 Understand the history of Earth and its life forms based on evidence of change recorded in fossil records and landforms.

8.E.2.1 Infer the age of Earth and relative age of rocks and fossils from index fossils and ordering of rocks layers (relative dating and radioactive dating)

8.E.2.2 Explain the use of fossils, ice cores, composition of sedimentary rocks, faults, and igneous rock formations found in rock layers as evidence of the history of the Earth and its changing life forms

TLW describe geologic time and how rocks, fossils and ice cores have helped develop that time scale by analyzing demonstrations and creating a time line of the major eras and the events that separated those eras. Students will then review earth’s history evidence in small groups for classroom “Hunger Games.”

Divide p. 20 in half

4 CornersHow have organisms changed over time?

Geologic HallwayWhen have different organisms appeared in history?

• Life on Earth has a history of change called evolution. Evolution of living organisms is revealed in the Geologic Time Scale.

• It is a calendar of Earth’s history based on fossil evidence found in rocks and climate evidence in ice cores.

TIME PERIODS ARE DIVIDED BY MAJOR EVENTS, NOT DATES

• Smaller divisions in the scale are distinguished by the appearance of new forms of lifeorganisms that lived during each time period.

• Fossils provide the evidence of these changes.

The geologic time scale/line shows that an enormous diversity of organisms has existed on Earth. The dividing lines for the eras are major events found in fossil records

There are two types of major events:– mass extinctions are the disappearance of large

numbers of species– mass radiations are the sudden appearance of large

numbers of new organisms.

4 corners…what time?

Look at your organism….go to the corner representing what era or time you believe your organism first appeared on earth

4 corners…what time?Look at your organism….go to the corner representing what era or time you believe your organism first appeared on earth

On page 20, summarize this activity. What did it demonstrate? How did the types of organisms on earth change as we move from era to era? What type of organisms were predominant in each era.Use complete sentences

Geologic Hallway time scale…when in time?

Silent…map testing is going onPosition yourself on the timeline based on when you believe your organisms first arrived on the planet.

Geologic Hallway time scale…when in time?

Silent…map testing is going onPosition yourself on the timeline based on when you believe your organisms first arrived on the planet.

On page 20, summarize this activity. What did it demonstrate? How did the types of organisms on earth change as we move from era to era?Use complete sentences

Putting it all together…Create Geologic Time Scale tape

1. Fold your paper hotdog style to create 4 sections2. Cut apart the sections3. Tape them end to end4. At the top of the strip, label one end “0” and the other end “now”

0 now

Putting it all together…Create Geologic Time Scale tape

Draw vertical lines to divide precambrian time and the three eras

49” 4“ 2.25” .75”

Putting it all together…Create Geologic Time Scale tape

Label the time periods

Pre-Cambrian Time Paleozoic Meso Ceno Era Era Era

Tape the LATE/RECENT end of the geologic time scale to page 20

Putting it all together…Create Geologic Time Scale tape

Pre-Cambrian Time Paleozoic Meso Ceno Era Era Era

Use pages 61A – 67A in your text book and printed web articles

Complete your timeline:For each era:• The major event(s) that mark the beginning & end of the era • Type of organisms that dominated and emerged in that era• 2 other facts about the era • Illustration of two organisms from that era Each era’s section

must be “decorated” to represent the climate/environment of the earth at that time

http://archive.fieldmuseum.org/evolvingplanet/POST/EP_V8.swfYou will be able to use this on the quiz next class period.