Happy Block Day
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New spot in
notebook:
Ecosystem Energy
Pyramid
Number 1 -5.
You’re sick Jerry! Sick,
sick, sick!
Learning Target: With my team, we will
explain why the ecosystem pyramid
HAS to be shaped like a pyramid.
Now stay calm...Let’s
hear what they said to
Bill.
Ecosystem Pyramid
Which energy type(s) are shown in
the following pictures?
Which Type of Energy? 1)
 Mechanical
Which Type of Energy? 2)
 The glacier is warming
up.
 It is turning to water.
Which Type of Energy? 3)
 A nice TV
 What is powering the
TV?
Which Type of Energy? 4)
 Use this SOLAR CELL
to power your home.
 Use the power of the
sun.
Which Type of Energy? 10)
Announcements:
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Science Boards due
a week from Friday!
Science fair 2/28
After school until
2/22 – lab open for
science fair work
AND support.
ASAP can also help.
Supplies and
computers!
On two pages of your notebook:
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Definitions for the
diagram
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Ecosystem Energy
Pyramid Diagram
Definitions:
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Energy – the ability to cause change.
Ecosystem – all of the living and nonliving
parts working together in a community.
Examples include a pond, Silverton, and the
world.
Ecosystem Energy pyramid - A graphic
organizer demonstrating the flow of energy
through an ecosystem.
Def: Sun – source of
electromagnetic energy for earth.
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How do you know
it’s a chemical
change and not a
physical change?
Sun
Chemical
Energy
Light
Travels
to Earth
Light Energy
Most of the sunlight is lost….
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It misses the earth
entirely or
It hits a spot on the
earth without a plant.
The spot warms up
and that thermal
energy floats up into
the sky.
http://www.youtube.com/watch?v=r
MFw5Fhiq24
Sun
Chemical
Energy
Light
Travels
to Earth
Light Energy
Most of Light Energy goes into space or
does not hit a plant. It is out there but not
useful to us.
DEF: PRIMARY PRODUCERS
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Plants
Convert sunlight to
glucose (sugar)
PHOTOSYNTHESIS
All life on earth is
dependent on them.
Sun
Chemical
Energy
Primary Producers
Light
Travels
to Earth
Light Energy
Chemical Energy
DEF: HERBIVORES
Animals that EAT
PLANTS for their
energy.
Another example of an
Herbivore...
*Animal uses energy to move (lost as friction) or to
keep warm (heat goes off into space) – all of that
energy is hard to use ever again – ENERGY FLOWS
Herbivore
Thermal
Energy*
Floats Off Into Space
Chemical
Energy in body
CARNIVORES!
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Well, they are all not
dangerous.
ANIMALS that EAT
OTHER ANIMALS
to obtain energy.
*Animal uses energy to move (lost as friction) or to keep
warm (heat goes off into space) – all of that energy is hard
to use ever again – ENERGY FLOWS
Herbivore
Thermal
Energy*
Floats Off Into Space
Carnivores
Chemical
Energy in body
Energy is Flowing through from level to
level – most of it is lost as it floats into
space.
Only 10% of usable energy flows
onto the next level.
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Thus, the higher on the
pyramid you are…
The less efficient is your
eating.
It takes a lot plants to
feed the insects and
rodents to feed a hawk.
Upper Carnivores
You know what I am talking about.
LIONS, TIGERS, AND BEARS.
Oh My!
Last in the chain – DEF:
DECOMPOSERS
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They recycle
materials
THEY EAT DEAD
ORGANISMS to
obtain their energy.
Mushrooms
Buzzards
Oh My!
Ecosystem Pyramid
Consider this choice:
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1) You can eat 1 pound of fruits and
vegetables or
2) You can eat one pound of
hamburger.
CONSIDER: It takes ten or more
pounds of vegetables to make that one
pound of hamburger.
Copy and Answer this question and then
make a pyramid Haiku.
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The ecosystem
pyramid has a wide
bottom and small
top because
_______.
HAIKU is 5 – 7 – 5.
And/or a bumper
sticker describing
why you can help
the world if you eat
less red meat.
Haiku
For a cow to live
Thousand pounds of plants must DIE
Vegetarian
Energy Floats Up
Not much left when you eat meat
Many plants must die