Tonight’s HW:(write it down)
1. Frayer Models2. Syllabus (if
needed)3. Lab Safety
Contracts (if needed)
DO NOW RADD: How old are
you? How old do you think I
am?How old do you think Earth is?
How do you know?
HW DUE TODAY1. Lab Reports2. Syllabus (if
needed)3. Lab Safety
Contracts (if needed)
Tuesday, September 1, 2015
CHAMPS: Conversation level is zero. Movement is zero. Activity is your Do Now. Raise your hand if you have any questions.
~AGENDA~
❑Do Now (3 minutes)❑Do Now/HW Check❑HW Review/Correct❑Trade and Grade❑Earth’s History❑Homework Expectations❑Clean Up/Exit
SWBAT:Define key vocabulary in
the Earth’s History module by completing
segmented PowerPoints.
Standard: ESS1-4: Construct a scientific
explanation based on evidence from rock strata for how the geologic time scale is used to organize Earth’s history.
Attack Strategy:
Text Based Reading
How old do you think Earth is?
4.6 billion years!4,600,000,000
Divided into 4 “eras”:
– Paleozoic – Precambrian
– Mesozoic – Cenozoic
Era-a major division of geological time usually divided into two or more periods
Period- marked by distinctive characteristics or events
How do scientists
know this?
Fossils
• Fossils (from the Classical Latin word fossilis; means, "obtained by digging")
• They are the preserved remains or traces of animals, plants, and other organisms from the remote past.
• Their position in the rock formations and sedimentary layers (strata) is known as the fossil record.
• The observation that certain fossils were associated with certain rock strata led early geologists to recognize a geological timescale in the 19th century.
Relative or Absolute
Relative DatingUnless something has happened, the newer
strata will be on top of older ones. Based on the Rule of Superposition,
certain organisms clearly lived before others,
during certain geologic times.
Absolute DatingRadioactive activity allows
geologists to determine the numerical or "absolute" age of the various strata and thereby the included fossils as young as 10,000
years old up to 3.48 billion years old.
Absolute age dating is like saying you are 15 years old and your grandfather is 77 years old.
Relative age dating is like saying that your grandfather
is older than you.
• The cyanobacteria have an extensive fossil record.
• The oldest known fossil, is a cyanobacteria
from the Archaean rocks of western Australia, dated 3.5 billion years old.
• This may be somewhat surprising, since the oldest rocks are only a little older: 3.8 billion years old!
• Like the extinct organisms that they come from, fossils vary in size from microscopic, single bacterial cells one micrometer in diameter, to gigantic, such as dinosaurs and trees many meters long and weighing many tons.
• A fossil normally preserves only a portion of the deceased organism, usually that portion that was partially mineralized during life, such as the bones and teeth.
• Fossils may also consist of the marks left behind by the organism while it was alive, such as animal tracks or feces (coprolites). – These types of fossil are called trace fossils
How long
was this era?
How long
was this era?
544 MYA - 245 MYA299 MYA
4,056 million years!
22 meters or 72.1785 feet
If this =5 meters, then
Sauraposeidon is______ long.
the
1
1
RADD: Explain what a geological
timeline is and how it relates to Earth’s History.
.
HomeworkComplete Frayer Models
Tonight’s HW:(write it down)
1. Personal Timeline
2. Syllabus (if needed)
3. Lab Safety Contracts (if needed)
DO NOW RADD:
What are fossils and
how are they made?
HW DUE TODAY1. Frayer Models2. Syllabus (if
needed)3. Lab Safety
Contracts (if needed)
Wednesday, September 2, 2015
CHAMPS: Conversation level is zero. Movement is zero. Activity is your Do Now. Raise your hand if you have any questions.
~AGENDA~
❑Do Now (3 minutes)❑Do Now/HW Check❑HW Review/Correct❑Earth’s History❑Homework Expectations❑Clean Up/Exit
SWBAT:Relate a geological timeline of
Earth’s History to a timeline of their own history by constructing a personal
timeline.
Standard: ESS1-4: Construct a scientific
explanation based on evidence from rock strata for how the geologic time scale is used to organize Earth’s history.
Attack Strategy:
Text Based Reading
RADD: What is the difference between
and era and a period?
.
HomeworkCreate a timeline based on your life.
Timeline Examples
Timeline Examples
Timeline Examples
Tonight’s HW:(write it down)
1. Geologic Timeline
2. Syllabus (if needed)
3. Lab Safety Contracts (if needed)
DO NOW RADD:
What are fossils and
how are they made?
HW DUE TODAY1. Personal
Timeline2. Syllabus (if
needed)3. Lab Safety
Contracts (if needed)
Thursday, September 3, 2015
CHAMPS: Conversation level is zero. Movement is zero. Activity is your Do Now. Raise your hand if you have any questions.
~AGENDA~
❑Do Now (3 minutes)❑Do Now/HW Check❑HW Review/Correct❑Earth’s History❑Geologic Timeline Activity❑Homework Expectations❑Clean Up/Exit
SWBAT:Classify Earth’s History by
completing a geologic timeline using eras and
periods.Standard: ESS1-4: Construct a scientific
explanation based on evidence from rock strata for how the geologic time scale is used to organize Earth’s history.
Attack Strategy:
Text Based Reading
RADD: Explain how geologist used
relative and absolute dating to create the timeline of Earth’s History.
.
HomeworkCreate a timeline based on Earth’s
history.