Download Darwin*s Evolution - Bath County Schools

Welcome Back!
Bellwork: Take a syllabus
(two pages) and read it
silently.
1/4/16
Bellwork: Day 1
Silently write out the complete answers you choose
and at least one sentence to justify your answers.
1/5/16
Darwin’s Evolution
Honors Integrated Science I
Spring 2016
1/5/16
Learning Targets
LT17: I can explain how the idea of
spontaneous generation was disproven
LT18: I can describe the influences for Darwin’s
theory of evolution
LT19: I can contract Lamarck’s and Darwin’s
ideas about Evolution
1/5/16
Vocabulary Flashcards
Formative Assessment:
Unit’s Vocabulary
Wednesday 1/6/16
1/5/16
Bellwork:
Day 2
Also, take out your
signed syllabus and
have it out on your
desk. If you don’t
have it, get yourself a
Break Detention and
fill it out.
1/6/16
Vocabulary Formative Assessment
1/6/16
Learning Targets
LT17: I can explain how the idea of
spontaneous generation was disproven
LT18: I can describe the influences for Darwin’s
theory of evolution
LT19: I can contract Lamarck’s and Darwin’s
ideas about Evolution
1/6/16
Learning Targets
LT17: I can explain how the idea of
spontaneous generation was disproven
LT18: I can describe the influences for Darwin’s
theory of evolution
LT19: I can contract Lamarck’s and Darwin’s
ideas about Evolution
1/6/16
LT17: I can explain how the idea of
spontaneous generation was disproven
What is spontaneous generation?
Four experiments
Redi
Needham
Spallanzani
Pasteur
Upcoming Events:
LT17 Formative
Assessment
Friday, January 8, 2016
1/6/16
Spontaneous Generation?
What is it?
Why did people ever believe it?
1/6/16
Francesco Redi
• Independent Variable:
Covering
or not
1.Put
meat
incovering
jars.
the jar with gauze
2.Cover
one
jar
• Dependent Variable:
with gauze;
leave
Maggots
or no maggots
• Controls: Size of jars,
the
other
jar
type of meat, location of
uncovered.
the
jars, temperature, time,
etc.
3.Wait
several days.
• Conclusions: Meat that
flies couldn’t get to did
not get maggots.
1/6/16
John Needham
1.Put broth in
flask.
2.Boil flask to kill
all life.
3.Wait several
days.
• Conclusions: Animalcules were spontaneously generated
in the boiled broth.
1/6/16
Lazzaro Spallanzani
1.Put broth in
flask.
2.Boil flask to kill
all life.
3.Seal flask.
4.Wait several
days.
• Conclusions: No animalcules grew in the boiled and
sealed jar.
1/6/16
Comparing Needham and Spallazani
What is the one
difference in the way
the two experiments
were conducted?
What was the
difference in the
results?
What reason did people
give at the time for the
difference in the result?
1/6/16
Louis Pasteur
1.Put broth in flask
with curved neck.
2.Boil flask to kill all
life.
3.Wait a year.
1/6/16
Louis Pasteur
4. After waiting a year,
break the neck of the
flask.
• Conclusions: Animalcules (bacteria)
from the air needed to enter the jar
before they could grow. Sealing the
flask or using a flask with a curved neck
prevented this. Removing the neck
allowed bacteria to enter and grow. 1/6/16
Bellwork:
Day 3….
Please answer
these two
questions
silently and
independently.
1/7/16
Learning Targets
LT17: I can explain how the idea of
spontaneous generation was disproven
LT18: I can describe the influences for Darwin’s
theory of evolution
LT19: I can contrast Lamarck’s and Darwin’s
ideas about evolution
1/7/16
Learning Targets
LT17: I can explain how the idea of
spontaneous generation was disproven
LT18: I can describe the influences for Darwin’s
theory of evolution
LT19: I can contract Lamarck’s and Darwin’s
ideas about Evolution
1/7/16
How did Louis Pasteur’s work
disprove Spontaneous
Generation?
1/7/16
One last review of Spontaneous Generation and the Scientists who
Studied It…
Formative Assessment of LT17 Friday 1/8/16. Bring any questions you
have to class tomorrow for a quick review before the Assessment.
Note: Reinforcement for the Vocabulary Formative Assessment before a
retake will be writing one complex and descriptive sentence for each
vocabulary word (using it the context of this unit). Once you have this
complete, please get a Study Zone pass and come it to do a retake.
Upcoming Events: Darwin’s voyage on the HMS Beagle: Guided Reading
should be complete by Monday 1/11/16 if you are planning to stay on
track.
1/7/16
Exit Slip
What is our current Learning Target?
1/7/16
Learning Targets
LT17: I can explain how the idea of
spontaneous generation was disproven
LT18: I can describe the influences for Darwin’s
theory of evolution
LT19: I can contrast Lamarck’s and Darwin’s
ideas about evolution
Learning Targets
LT17: I can explain how the idea of
spontaneous generation was disproven
LT18: I can describe the influences for
Darwin’s theory of evolution
LT19: I can contrast Lamarck’s and Darwin’s
ideas about evolution
LT18: I can describe the influences for
Darwin’s theory of evolution
Darwin’s voyage to the Galápagos Islands
Scientists
James Hutton
Charles Lyell
Jean-Baptiste Lamarck
Thomas Malthus
Alfred Russel Wallace
Artificial Selection vs. Natural Selection
LT18: I can describe the influences for
Darwin’s theory of evolution
Darwin’s voyage to the Galápagos Islands
Scientists
James Hutton
Charles Lyell
Jean-Baptiste Lamarck
Thomas Malthus
Alfred Russel Wallace
Artificial Selection vs. Natural Selection
Darwin’s voyage to the Galápagos
Islands
LT18: I can describe the influences for
Darwin’s theory of evolution
Darwin’s voyage to the Galápagos Islands
Scientists
James Hutton
Charles Lyell
Jean-Baptiste Lamarck
Thomas Malthus
Alfred Russel Wallace
Artificial Selection vs. Natural Selection
As we take notes today…
Here’s a secret about scientists… Scientists question everything.
So, instead of just passively listening today or even writing down
what’s on the screen, I challenge you to question what each point
is really telling you.
Ask yourself, does each statement make sense?
Ask yourself, why?
Ask yourself, how can this apply to other situations?
Ask yourself, even though I know these words, do I know what
they mean in this context?
Scientists who influenced Darwin:
James Hutton
Hutton was a geologist
Published a theory about how geological processes
shaped the Earth
Hutton argued these processes happen extremely
slowly
Hutton concluded that, in order for the Earth to
have the features it does today, it must be much older
than a few thousand years
Scientists who influenced Darwin:
Charles Lyell
Another geologist
Believed past events must be explained in
terms of processes that can still be observed
today
How does this relate to
what Darwin observed on
the HMS Beagle???
Scientists who influenced Darwin:
Jean-Baptiste Lamarck
We’ll be talking about his ideas in detail later
For now, Lamarck suggested that traits organisms
acquire are inherited by their offspring
He was one of the first scientists who saw that living
things changed over time and that organisms
somehow became adapted to their environments
So why aren’t we studying
Lamarck’s Theory of Evolution?
Scientists who influenced Darwin:
Thomas Malthus
Malthus saw patterns in humans of too much
competition of limited resources, and predicted the
downfall of the species
Darwin saw the same patterns in non-human
organisms
What would happen if
Malthus’s ideas about
populations DIDN’T apply
no non-humans?
Scientists who influenced Darwin:
Alfred Russel Wallace
Wallace was doing work similar to Darwin
In 1858, Wallace sent an essay to Darwin summarizing
nearly all of Darwin’s ideas
Darwin knew he had to publish his ideas if he was going
to get credit for his work
Twenty-five years after first forming his conclusions,
Darwin finally published On the Origin of Species in
1859
LT18: I can describe the influences for
Darwin’s theory of evolution
Darwin’s voyage to the Galápagos Islands
Scientists
James Hutton
Charles Lyell
Jean-Baptiste Lamarck
Thomas Malthus
Alfred Russel Wallace
Artificial Selection vs. Natural Selection
Artificial Selection
You’ll be working in partners.
Make observations about the vegetables
that are being passed around. Each
person will fill in their own chart.
Ancestral Species:
Brassica
What vegetable was obtained when plants with…
The biggest and best flower clusters were selected
and bred?
The stems and flowers were selected and bred?
The leaves are selected and bred?
The lateral (side) buds are selected and bred?
The terminal buds?
What is a species?
When do two groups of related
organisms become different species?
How did this happen?
Variation
What is it?
Do all species have variation?
Where does variation come from?
Do humans have variation?
How does variation relate to artificial selection?
Variation’s Role in Natural
Selection
More
offspring are
born than
survive
Individuals
have
variations
Reproducing passes
on inheritable traits
Survives
to
Lives
Notthe
reproduce the
exactly…
longest
most
Survival of the Fittest
Best suited to
Biggest
and
Not
their habitat and
Strongest
exactly…
niche
Artificial Selection vs. Natural Selection
What do they have in common?
What is different about them?