Transcript (15OCT14) Notes About Adaptation (part 1-why)

Bell
Work
SPI 0807.5.2
Adaptation
Oct 15, 2014
1) First put your books and notebooks down at your desk.
2) Next notice the blue paper(s) posted at each student work station.
3) Notice what is on the blue paper(s) (months for birthdays).
4) Go to the work station that is displaying your birth month
WS 1: January and Feburary
WS 2: March
WS 3: April
Corner WS: May
WS 4: June
WS 5: July
WS 6: August
WS 7: September
WS 8: October and November
Front WS: December
PLAN
SPI 0807.5.2
Adaptation

1) Discuss objectives, check bell work, tally results
2) Celebrate birthdays
3) Watch adaptations video, do activity at work stations
Video link: Camel Adaptations-Video Clip
4) View and discuss notes about adaptations
5) (Time Permitting) Watch a Study Jam video about
adaptations
Take Out Your Agendas!
HOMEWORK:
Re-study and do over assignments (as needed)
2
Instructions
SPI
0807.5.2
Notes
1)
First click on "View" from the top-menu bar. Science
Adaptation
2) Then click on "Slide Show" from the drop-down menu.
Environments
always
change over
time
3) Then use the
right-arrow
button
on your keyboard to
 advance
So organisms,
both
and animals, must also change
through
thisplants
presentation.
 Changing is called adapting (also called adaptation)
 If an organism can not adapt to environmental changes they die
 If too many of the organisms die, then the entire species will
go extinct
Notes
SPI 0807.5.2
Adaptation
Science
Tennessee SPI Objective:
Analyze structural, behavioral, and physiological
adaptations to predict which populations are
likely to survive in a particular environment.
Essential Learning
Students will analyze behavioral and structural
adaptations that relate to species survival.
Essential Question
How do species adapt their behavior and their
physical structure in order to survive?
Notes
SPI 0807.5.2
Adaptations
Science
Environments always change over time
 They change seasonally and sometimes for other reasons
 So organisms must also change in order to survive.
This is called adapting
 One reason that environments change is due to the movement
of tectonic plates.
Example: Antarctica is very cold and
icy today since it is at the south pole
Yet millions of years ago Antarctica was
further north and had a warm climate.
It moved south riding on a tectonic plate.
As it moved the environment became colder.
As the environment became colder, the
plants and animals there had to adapt or die.
Notes
SPI 0807.5.2
Adaptation
Science
Environments always change over time
Millions of years ago Antarctica was further
north and had a warmer climate.
It moved south riding on a tectonic plate.
As it moved the environment became colder.
As the environment became colder, the
plants and animals there had to adapt or die.
Antarctica
Notes
SPI 0807.5.2
Adaptation
Science
Environments always change over time
Millions of years ago Antarctica was
further north and had a warmer climate.
It moved south riding on a tectonic plate.
As it moved the environment became colder.
As the environment became colder, the
plants and animals there had to adapt or die.
Notice that it is moving
southward
Antarctica
Video Link: Tectonic Plate Movement
Notes
SPI 0807.5.2
Adaptation
Science
Environments always change over time
 Another reason that environments change is due to the way the
Earth orbits (revolves) the sun
Example: In reoccurring cycles lasting thousands to millions of years, the Earth
wanders either a bit further away or a bit closer to the sun as it orbits the sun.
When Earth orbits closer to the sun, the entire planet is warmer. When Earth orbits
farther away from the sun, the entire planet gets colder.
As the planet becomes hotter or colder, plants and animals must adapt or die.
Earth
As the distance increases or
decreases between the Earth
and the Sun, Earth becomes
colder or hotter.
Sun
Notes
SPI 0807.5.2
Adaptation
Science
Environments always change over time
 Another reason for this change is due to catastrophic events
like volcanoes and/or objects striking the planet from space.
Example: Volcanic eruptions can throw tons and tons of rock dust and smoke into the
atmosphere creating gigantic clouds that block sunlight. This affects plants, and the
animals that eat them. Both the plants and animals have to adapt or die.
Video Link: Volcanic Eruption
Notes
SPI 0807.5.2
Adaptation
Science
Environments always change over time
 Another reason for this change is due to catastrophic events
like volcanoes and/or objects striking the planet from space.
Example: When large asteroids strike the Earth tons of rock dust is thrown up into
the atmosphere. These dust clouds block sunlight causing our planet to become
colder. This affects plants, and the animals that eat them. They must adapt or die.
Video Link: Asteroid Strike (In the Past)
Video Link: Asteroid Strike (In the Future?)
Quick
Review
SPI 0807.5.2
Adaptation
Science
Questions
 What is one reason that environments change?
 What is another reason that environments change?
 What is another reason that environment change?
 When environmental change occurs, what happens to the
organisms that live in the environment?
 What is extinction?
 Is extinction rare or common?
 Explain how humans are causing environmental change
around the planet.