Transcript 4/20 & 4/21 - 7th Grade Agenda

3/8 & 3/9 - 7th Grade Agenda
Collect HW: Reading & Notetaking p.
143 - 146
Geological Time Scale
Brain Pop: Carbon Dating, Fossils
Video: Marble Race Lab
Video: Walking w/ Dinosaurs
Text Book Reading: 286 – 293
HW: Reading & Notetaking p. 147 - 150
Reflection
• Prompt: Write 3 questions that you have
about prehistoric creatures?
Reminder: Need to take back
Posters by Wednesday
Marble Race Lab 3/17 & 3/18
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Up to 4 students per team
5 Points if you build one
8 Points Extra Credit for the 1st place team
5 Points Extra Credit for the 2nd place
team
• 3 Points Extra Credit for the 3rd place team
Marble Race Lab 3/17 & 3/18
• Project has to be completed in class
(about 1 hour)
• Contest will be judged on the how creative
it is.
• I’ll provide the marble, masking tape and
construction paper.
• You can bring other extra materials.
When was the earth created?
• Earth was formed
about 4.6 billion years
ago
What happened during
Precambrian Time?
• Earth was formed about 4.6
billion years ago
• Earliest forms of life began
about 3.5 billion years ago.
They were single celled
organism similar to bacteria
• About 2.5 billion years ago,
organisms started to use the
process of photosynthesis.
This increased the amount of
oxygen in the atmosphere.
Development of Atmosphere
When did life began on earth?
• Earliest forms of life
began about 3.5
billion years ago.
They were single
celled organism
similar to bacteria
Development of Atmosphere
What happened during Paleozoic
Era 544 – 245 Million Years ago?
• Cambrian Explosion:
At the beginning of
the Paleozoic Era, a
great number of
different kinds of
organisms evolved.
Cambrian Period – Explosion of Life in
the sea (544 Million Years ago)
Devonian Period – Animals invade the
land (408 Million Years Ago)
Permian Period (286 Million
Years Ago)
End of the Permian Period, there was a
mass extinction – (245 Million years ago)
• 95% of life in the
oceans disappeared
• What do you think
might have cause the
mass extinction?
Mesozoic Era – Triassic, Jurassic Cretaceous
Period (245 – 66 Million Years ago)
End of Cretaceous Period, there was another
mass extinction (66 Million years ago)
• Where did the asteroid
hit?
• Asteroid hit near
southeastern Mexico
(Yucatan Peninsula)
• When the asteroid hit
Earth, the impart threw
huge amount of dust and
water vapor into the
atmosphere
Which animal is the closest
living relative of Dinosaurs?
• Birds are considered
to be closest relatives
of dinosaurs
Reflection
• Prompt: Write 5 facts that you learned
during brain pop video?