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Friday sev2csec Lesson

Friday sev2csec Lesson

Assessment

Presentation

Science

8th Grade

Easy

NGSS
K-ESS3-1, K-ESS2-1, MS-ESS3-2

+11

Standards-aligned

Created by

Alfred Allen

Used 6+ times

FREE Resource

39 Slides • 5 Questions

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My Class Expectations

Camera

Quizziz joining now please

Write in the chat:hello and

share favorite color

ROCK

SGB Block Schedule

01-24-2025

the BLOCK

MR. Allen

Environmental

Science

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BLOCK SCHEDULE

Georgia Cyber Academy SGB

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What would you tell me

about Georgia and

forest fires?

Body

This or that where would you see
a forest fire California or Georgia?

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Open Ended

Wild fires are real: which place would you think have them more often California or Georgia(why)

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Vocabulary terms(standard essential)

Catastrophe: a significant and sudden event that causes widespread destruction or disruption,
often leading to ecological changes and initiating the process of succession.

Intermediate Species: species that appear during the stages of ecological succession, often
filling the gaps between pioneer species and climax communities, contributing to the overall
biodiversity of the ecosystem.

Disturbances can be minor or major, and can affect the ecological community, as well as

non-living features like soil and water.

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Vocabulary terms(standard essential)

secondary Succession: the process of ecological change that occurs in an

environment that has a temporary change which has soil remaining.

Climax Community: a stable and mature ecological community that has

reached a final stage of succession, characterized by a diverse range of
species and a balanced ecosystem.

Pioneer Species: the first organisms to colonize previously disrupted or
damaged ecosystems, helping to create conditions that allow other species to
thrive.

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Standard

EV2. Obtain, evaluate, and
communicate information to construct
explanations of
stability and change in Earth’s
ecosystems.

c. Construct an argument to predict
changes in biomass, biodiversity, and
complexity within ecological succession.

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Learning Target

I can identify the start step for a

secondary succession after a

catastrophically event.

- I can explain secondary

succession and the events in proper

order)

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Weekly prep

slide

Check your calendar and mark time for

these due dates.

Questions: email teacher before due

dates is best practice.
Cheese Maze for sev1b aug 27th

Today: a check multiple choice

assignment.

The 30thof August “Science Fair”

pick a project deadline.
The succession notebook due today

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Catastrophy=repair=climax

How can scientists

determine if an ecosystem

will recover from a

catastrophic natural event?

Today is part two of two days we will

explore how is change in an ecosystem
measured according to events of change.

How do scientists categorize

and identify primary vs secondary succession in an

ecosystem?

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Ecological succession

the process by which the species and environmental

factors in an area change over time.

Disturbances are events that cause large and rapid

changes to an ecosystem, which can then trigger

succession

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Change in

ecosystems happen
at different levels.
There are two types

primary and

secondary
succession

occurs when species are
colonizing a new habitat that
was previously devoid of life.
An example of primary
succession is the formation
of an ecological community
atop newly formed igneous
rocks after a volcanic
eruption. Because the rocks
just formed, the community
is forming on them for the
first time (hence, primary
succession).

happens after a
disturbance that caused
a sudden change in an
existing ecosystem,
such as a wildfire or
flood. Such
disturbances may
(temporarily) wipe out
or scare off many of the
species living there
before the disturbance.

Primary succession Secondary
succession

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Disturbance

A change in an

ecosystem is
caused by a
disturbance.

A succession does not

start until post
disturbance(after the
catastrophe)

Lets go over the parts of change in

secondary succession

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secondary succession

secondary succession starting with soil, next is pioneer

species, intermediate species small shrubs, pine trees and
hardwood trees

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The first organisms to arrive after a
catastrophe that has destroyed an
ecosystem is complex grass and small
vegetation.

You ever wonder what is left from a wildfire?

Pioneer species

are

intermediate species

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Intermediate plant species include grasses, shrubs, and some trees that can survive in thin topsoil.


Intermediate species often include shade-intolerant plants which thrive in the relatively open, post-
disturbance landscape.

As more and more plant species become established, they help create habitats for different animal species

to return to.

Intermediate species

1 of 2

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Intermediate plant species include shrubs, and some trees that can survive in thin topsoil.


Intermediate species often include shade-intolerant plants which thrive in the relatively
open, post-disturbance landscape.

As more and more plant species become established, they help create habitats for different animal species

to return to.

Intermediate species shade intolerant

2 of 2

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Climax community

(shade-tolerant)

Climax (shade tolerant) species: Climax species are the last species to return

to an area following a disturbance. Climax species require a thicker layer of
nutrient-rich topsoil to grow.

Climax species often include shade-tolerant tree species, which can grow

from seedlings beneath a canopy of shade-intolerant trees, as well as any
animals that rely on these tree species.

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Wild fires

ires can trigger ecological succession, a process that involves the regeneration of ecosystems after a
disturbance. The type of succession that occurs depends on whether the fire kills all trees and removes
surface organic matter, or if some soil and nutrients remain

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Humans impact the cycle of disturbance and succession in many ways. People create

unnatural disturbances such as clearcutting forests. Humans sometimes introduce invasive
species that take the place of native species during the succession process. We also alter
the timing of disturbances, causing disturbances to take place more or less often than they

should naturally. Humans often try to prevent disturbances like fires, floods, and

landslides because they damage our buildings, roads, and homes. However, altering

natural disturbance regimes has a history of coming back to haunt us.

Human impact

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Change and ecosystems

Terrestrial and

aquatic biomes all
have balance of

change

Secondary succession

happens in ecosystems

why is it important?

What is the good from

it?

Will the
change

bring life?

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CHECK FOR UNDERSTANDING:

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Biomes

When we talk about succession this is the picture you usually see.

Think about the organisms in different biomes. What do you see as you follow
the arrows?

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Climax Community

Just like a food web, each
biome has different
organisms so the climax
community will look
different.

An ecosystem is always
developing to its most
complex and stable state.

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Let’s see how you do?

The wildfire has gone out of control, and

we need to be the ones to put the

ecosystem back together in the proper

order

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Reorder

Reorder the following steps for secondary succession

1
2
3

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Mastery in 3 steps


Email word wall


Go to progress
learning for standard
and excel to green
dot status


Take three slots in
the choice menu for
the test.

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web page not embeddable

Primary and Secondary Succession - Find the match

You can open this webpage in a new tab.

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Mastery paths

9 squares menu selection

20 points


Which slots will you answer?

What is a good picture
for the Taiga

What is the reason
deciduous forests have
rich topsoil from
decaying leaves

What are the three
types of wetlands

What is an individual look
like

What is the difference
between estuary and
oceans?

What ecosystems are
ponds and lakes

What is the most
biodiverse part of the
ocean

Three adaptations for
Tundra vs desert

Tropical rainforest three
adaptations

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Poll

Question image

On the menu which questions will you answer?

yellow to green

yellow to orange

yellow to blue

orange to blue

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Brain Break

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Time to explore some notebook

virtual activities for succession

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web page not embeddable

Sign in - Google Accounts

You can open this webpage in a new tab.

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What are the two parts
for an ecosystem to
exist?

What is the four
level of an energy
pyramid

Show an example of an energy
pyramid that an ecosystem is
not going to be a sustainable
place.

What is the two main
abiotic parts of a biome

What are the three
roles of consumers?

What happens if one of the three
consumer levels goes missing?

What is the difference
between estuary and
fresh water lotic
ecosystem?

What is the
difference between
producer and
consumer?

What are the two types of
processes producers can use for
the base of energy in an
ecosystem

Ninja

Warrior

Champion

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secondary
succession

In the article we viewed over
together. What is an example of
secondary succession, first steps?

soil not present and change with

pioneer species like grass

soil not present and change with

pioneer species like moss and lichen

soil present and change with

pioneer species like grass

soil present and change with

pioneer species like trees

Emoji trivia time

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Multiple Choice

What is an example of secondary succession, first steps?

1

🐇 soil not present and change with pioneer species like moss and lichen

2

😀 soil not present and change with pioneer species like grass

3

🐢 soil present and change with pioneer species like grass

4

🔊 soil present and change with pioneer species like trees

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CHECK FOR UNDERSTANDING:

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google slides with succession

Ready to show your skills?

yes, give me the link

no, I need to text you.

I need help

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INDIVIDUAL PRACTICE (20 MINUTES)

“YOU DO”

Frayer Model


1. definitions here
2.
Characteristics focused ideas of the term
3. example
4 picture


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Lesson Summary


A Science Fair project has specific elements
that are required.

I can investigate something that I am
interested in for my Science Fair project.

I can research my idea.

The first law of thermodynamics explains that
energy changes form in an ecosystem but it
doesn’t disappear.

The second law of thermodynamics explains
that most energy in an ecosystem is used to
help the organism survive and is not available
at the next level.

Changing events in an ecosystemto determine
its success.

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Lesson Summary


Ecological Succession involves a series of changes in
an ecosystem from either starting a new community
or replacing an older community.


An ecosystem is always trying to develop to its most
complex and stable state.


Disturbances from succession events cause a
decrease in biodiversity, biomass, and complexity
within food webs.


As ecosystems progress through succession stages
biodiversity increases.


Biodiversity is the variety of life in the world or in a
particular habitat or ecosystem.


Biomass is the total mass of organisms in a given
area or volume.

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Open Ended

Question image

Using the words from the word bank try to earn 10 dollars-each word in the bank is worth 1 dollar.

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You play a sport.

Name
Canvas msg or
AAllen@georgiacyber.org
404-334-4790 X 2222

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My Class Expectations

Camera

Quizziz joining now please

Write in the chat:hello and

share favorite color

ROCK

SGB Block Schedule

01-24-2025

the BLOCK

MR. Allen

Environmental

Science

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