Download evolution

The Theory of
EVOLUTION
What is Science?
“a way of knowing about the
natural world based on
observation and experiments
that can be confirmed or
disproved by other scientists
using accepted scientific
techniques.”
True or False
All scientists follow the same method for
solving a problem.
Theory
“a well substantiated explanation
of some aspect of the natural
world that includes many
confirmed observations, laws,
and successfully verified
hypotheses.”
Student Activity
Isn’t Evolution Just a
Theory?
click
here
Take video notes
Student Activity
How does the scientific meaning of a term
like theory differ from the way it is used in
everyday life?
Explain your answer
Evolution is when
What
is
evolution?
“population of species
____________________”
How long did it take to CHANGE?
Who was
Charles Darwin?
click
here
Student Activity
Write down at least 10-15
facts about Darwin and his
discoveries from the video
clip.
Check your video facts…
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He loved nature (Naturalist)
Sailed around the world in ____________
Collected fossils and specimens of plants and
animals especially around the ____________
_____________________________.
Developed a theory called _____________ to
explain how evolution occurred.
Published: ___________________
Before Darwin’s
theory of Natural
Selection…
___________________ (1774-1829)
proposed a hypothesis for
how organisms change
over generation. This
mechanism was known as
“_______________
___________________.”
True or False
A woman who
gets a tattoo can
pass on the tattoo
to her unborn
child.
What is natural selection?
The process where individuals that have
physical or behavioral traits (genes) that
_________________their environment are
more likely to ___________ and will
________________ more successfully than
those that do not have such traits.
Identify what each of the finches eats
for dinner…
WHY?
Examine the physical characteristics of the birds
shown above. Which of the birds is least likely
to survive by eating plants or animals that live in
shallow water?
F. mallard duck
G. common snipe
H. red-tailed hawk
J. great blue heron
Adaptation
A feature that has become
__________ in a ___________
because it provides a _________
___________ and is produced by
natural selection.
Which species will do best? Why?
Cartoon Project
Left Side IAN
Using your ruler, draw a
10cm x 10cm box and draw a
cartoon as to what type of food
this bird would eat.
* write a paragraph explaining
why or how the cartoon shows the
concept of natural selection
underneath the cartoon drawing.
Example of Adaptation and
Natural Selection
click
here
Take video notes
Quick Write Activity
1. What is sickle cell?
2. How is malaria transmitted?
3. Explain how sickle cell is passed on from parent
to offspring.
4. How is this mutation an example of natural
selection by adaptation?
Overview of Darwin’s Theory of
Evolution
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Variation exists within the genes of every
population or species.
In a particular environment, some individuals
of a population or species are BETTER suited
to survive.
Over time, traits with advantages tend to
spread in that population.
Living species today have evolved from
organisms that are extinct.
How fast does Evolution occur?
Two hypotheses

___________- gradual
change of species occur
at a slow and constant
rate over a long period
of time.

__________________species occurs in periods
of rapid change separated
by periods of little to no
change at all.