The document explains various ecological concepts, differentiating between abiotic factors (nonliving conditions like sunlight and water) and biotic factors (living things like insects and animals). It describes life cycles, food chains, erosion and deposition processes, and both chemical and mechanical weathering. Examples are provided to illustrate each concept, emphasizing their roles in ecosystems.

1.
By:
Gabrielle
Letsinger

2. Abio3c
Factors
•
Abio3c
Factors
means
a
nonliving
condi3on
or
thing.
• Examples
are
sunlight,
water,
air,
table
chair
binder
head
phones
pencils,
paper,
weather
,
temperature
moisture
light
soil.
Some
examples
Insects,
bacteria,
people
animals,
earth.

3. •
Bio3c
Factors
means
a
living
thing
• Some
examples
Insects,
bacteria,
people,
animals,
earth.

4. Life
Cycle
• Life
cycle
means
the
series
of
changes
occurring
in
an
animal
or
plant
between
one
development
stage
and
the
iden3cal
stage
in
the
next
genera3on.
• Some
examples
are
human,
animal,
and
plant
cycle.

5. Food
Chain
•
A
Food
chain
is
a
series
of
organisms
interrelated
in
their
feeding
habits,
the
smallest
being
fed
upon
by
a
larger
one,
which
in
turn
feeds
a
s3ll
larger
one.
• Some
examples
are
corn
-­‐-­‐>
chick
-­‐-­‐-­‐>
snake
-­‐-­‐-­‐-­‐>
man
• rice
-­‐-­‐>
rat
-­‐-­‐-­‐>
owl
•
grass
-­‐-­‐>
earthworms
-­‐-­‐>
bird
-­‐-­‐>
snake
• grass
-­‐-­‐-­‐>
cow
-­‐-­‐-­‐>
man
• grass
-­‐-­‐-­‐>
deer
-­‐-­‐>
eagle
• carrots
-­‐-­‐-­‐>
rabbit
-­‐-­‐>
snake
-­‐-­‐>
eagle

6. Erosion
•
Erosion
means
the
act
or
state
of
eroding.
• Some
examples
of
erosion
•
Force
of
wind
• Ac3on
of
water
•
Ac3on
of
waves
• Ac3on
of
glaciers

7. Deposi3on
• Deposi3on
means
the
act
or
process
of
deposi3ng.
• Some
examples
of
Deposi3on
some
examples
of
deposi3on
are
when
streams
deposit
sediments
into
deltas
and
alluvial
fans.
•
• Also,
wind
deposits
sand
when
wind
velocity
decreases
because
it
cannot
carry
enough
par3cles
.
• Finally,
glaciers
deposit
all
sizes
of
sediment.
They
leave
a
big
pile
of
rocks
called
moraine.
Moraine
usually
is
deposited
in
lakes
called
terminal
moraines.

8.
Chemical
Weathering
•
• Chemical
weathering
mean
any
of
the
various
weathering
processes
that
cause
exposed
rock
to
undergo
chemical
decomposi3on,
changing
the
chemical
and
mineralogical
composi3on
of
the
rock.
•
• Examples
of
chemical
weathering
is
oxida3on
acid
rain,
hydra3on
,
carbona3on
chemical
change
changes
of
the
chemical
of
the
substance
to
make
to
a
new
one
.

9. Mechanical
Weathering
• Mechanical
weathering
mean
any
of
the
various
weathering
processes
that
cause
physical
disintegra3on
of
exposed
rock
without
any
change
in
the
chemical
composi3on
of
the
rock.
• Examples
of
mechanical
weathering
is
ice
wedging
temperature
change
root
and
animal
ac3vity.
• Also
know
as
Physical
Weathering

10. • Google.com,
hNp://wiki.answers.com,
hNp://
dic3onary.reference.com