Top Banner
Chapter 3 Chapter 3 Lesson 2 Lesson 2 What Factors Affect What Factors Affect Ecosystems? Ecosystems? SPI’S: Science: 7.2.3, 7.5.2, 7.2.2, 7.2.3 SPI’S: Science: 7.2.3, 7.5.2, 7.2.2, 7.2.3 Reading: 5.1.12, 5.1.3, 5.1.14, 5.1.16, 5.1.20 Reading: 5.1.12, 5.1.3, 5.1.14, 5.1.16, 5.1.20 Language: 1.1.5, 1.1.13, 1.5.2 Language: 1.1.5, 1.1.13, 1.5.2
32

Chapter 3 Lesson 2 What Factors Affect Ecosystems? SPI’S: Science: 7.2.3, 7.5.2, 7.2.2, 7.2.3 Reading: 5.1.12, 5.1.3, 5.1.14, 5.1.16, 5.1.20 Language:

Dec 16, 2015

Download

Documents

Marcus Oswald Bailey

area slide

previous slide

population of predators

population of rabbits

rabbit population

prey predators

healthy ecosystem

given species

Welcome message from author
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
Page 1: Chapter 3 Lesson 2 What Factors Affect Ecosystems? SPI’S: Science: 7.2.3, 7.5.2, 7.2.2, 7.2.3 Reading: 5.1.12, 5.1.3, 5.1.14, 5.1.16, 5.1.20 Language:

Chapter 3 Chapter 3 Lesson 2Lesson 2

What Factors Affect Ecosystems?What Factors Affect Ecosystems?SPI’S: Science: 7.2.3, 7.5.2, 7.2.2, 7.2.3SPI’S: Science: 7.2.3, 7.5.2, 7.2.2, 7.2.3

Reading: 5.1.12, 5.1.3, 5.1.14, 5.1.16, 5.1.20Reading: 5.1.12, 5.1.3, 5.1.14, 5.1.16, 5.1.20Language: 1.1.5, 1.1.13, 1.5.2Language: 1.1.5, 1.1.13, 1.5.2

Page 2: Chapter 3 Lesson 2 What Factors Affect Ecosystems? SPI’S: Science: 7.2.3, 7.5.2, 7.2.2, 7.2.3 Reading: 5.1.12, 5.1.3, 5.1.14, 5.1.16, 5.1.20 Language:

Main Idea Main Idea

The size of any population can vary over The size of any population can vary over time. It responds to change in climate time. It responds to change in climate and resources. and resources.

Page 3: Chapter 3 Lesson 2 What Factors Affect Ecosystems? SPI’S: Science: 7.2.3, 7.5.2, 7.2.2, 7.2.3 Reading: 5.1.12, 5.1.3, 5.1.14, 5.1.16, 5.1.20 Language:

In This Lesson:In This Lesson:

We’ll learn how a decrease in food supply, We’ll learn how a decrease in food supply, changes in climate, and relocated species changes in climate, and relocated species can upset the balance of an ecosystem.can upset the balance of an ecosystem.

Page 4: Chapter 3 Lesson 2 What Factors Affect Ecosystems? SPI’S: Science: 7.2.3, 7.5.2, 7.2.2, 7.2.3 Reading: 5.1.12, 5.1.3, 5.1.14, 5.1.16, 5.1.20 Language:

Vocabulary:Vocabulary:It’s journal time folks!!!It’s journal time folks!!!

ExtinctionExtinction PopulationPopulation PredatorPredator PreyPrey

Page 5: Chapter 3 Lesson 2 What Factors Affect Ecosystems? SPI’S: Science: 7.2.3, 7.5.2, 7.2.2, 7.2.3 Reading: 5.1.12, 5.1.3, 5.1.14, 5.1.16, 5.1.20 Language:

Extinction: Extinction:

When all members of a species die outWhen all members of a species die out

Page 6: Chapter 3 Lesson 2 What Factors Affect Ecosystems? SPI’S: Science: 7.2.3, 7.5.2, 7.2.2, 7.2.3 Reading: 5.1.12, 5.1.3, 5.1.14, 5.1.16, 5.1.20 Language:

Population:Population:

All the organisms of a given species that All the organisms of a given species that live together in the same arealive together in the same area

Page 7: Chapter 3 Lesson 2 What Factors Affect Ecosystems? SPI’S: Science: 7.2.3, 7.5.2, 7.2.2, 7.2.3 Reading: 5.1.12, 5.1.3, 5.1.14, 5.1.16, 5.1.20 Language:

Predator:Predator:

Animal that hunts and eats other animalsAnimal that hunts and eats other animals

Page 8: Chapter 3 Lesson 2 What Factors Affect Ecosystems? SPI’S: Science: 7.2.3, 7.5.2, 7.2.2, 7.2.3 Reading: 5.1.12, 5.1.3, 5.1.14, 5.1.16, 5.1.20 Language:

Prey:Prey:

Animal that is hunted and eaten by Animal that is hunted and eaten by predatorspredators

Page 9: Chapter 3 Lesson 2 What Factors Affect Ecosystems? SPI’S: Science: 7.2.3, 7.5.2, 7.2.2, 7.2.3 Reading: 5.1.12, 5.1.3, 5.1.14, 5.1.16, 5.1.20 Language:

Hey, did you catch that?Hey, did you catch that?

Predator and Prey are…Predator and Prey are…

Antonyms!!!Antonyms!!!

(opposites)(opposites)

Page 10: Chapter 3 Lesson 2 What Factors Affect Ecosystems? SPI’S: Science: 7.2.3, 7.5.2, 7.2.2, 7.2.3 Reading: 5.1.12, 5.1.3, 5.1.14, 5.1.16, 5.1.20 Language:

Let’s Talk Population…Let’s Talk Population…

Remember, a population is all the Remember, a population is all the organisms of a given species that live organisms of a given species that live together in the same area.together in the same area.

Page 11: Chapter 3 Lesson 2 What Factors Affect Ecosystems? SPI’S: Science: 7.2.3, 7.5.2, 7.2.2, 7.2.3 Reading: 5.1.12, 5.1.3, 5.1.14, 5.1.16, 5.1.20 Language:

Let’s Talk Population…Let’s Talk Population… Population size responds to changes in Population size responds to changes in

climate and resources.climate and resources.

How do you think the birds on the previous How do you think the birds on the previous slide would respond to the 3 climate slide would respond to the 3 climate

examples listed below? examples listed below?

Page 12: Chapter 3 Lesson 2 What Factors Affect Ecosystems? SPI’S: Science: 7.2.3, 7.5.2, 7.2.2, 7.2.3 Reading: 5.1.12, 5.1.3, 5.1.14, 5.1.16, 5.1.20 Language:

Let’s Talk Population…Let’s Talk Population…

In a healthy ecosystem, the population of In a healthy ecosystem, the population of predators and prey are balanced. predators and prey are balanced.

Page 13: Chapter 3 Lesson 2 What Factors Affect Ecosystems? SPI’S: Science: 7.2.3, 7.5.2, 7.2.2, 7.2.3 Reading: 5.1.12, 5.1.3, 5.1.14, 5.1.16, 5.1.20 Language:

Changes in Population…Changes in Population…

Every ecosystem supports many populations. Every ecosystem supports many populations. That means many different species live in the That means many different species live in the same ecosystem. same ecosystem.

A population is all the organisms of a given A population is all the organisms of a given species that live together in the same area. species that live together in the same area.

Any change in one part of an ecosystem can Any change in one part of an ecosystem can upset the balance. upset the balance.

Page 14: Chapter 3 Lesson 2 What Factors Affect Ecosystems? SPI’S: Science: 7.2.3, 7.5.2, 7.2.2, 7.2.3 Reading: 5.1.12, 5.1.3, 5.1.14, 5.1.16, 5.1.20 Language:

For Example:For Example:

Suppose a fungus kills many of the Suppose a fungus kills many of the plants that rabbits eat. Such an event plants that rabbits eat. Such an event could lower the rabbit population. This could lower the rabbit population. This would affect the hawks, owls, and other would affect the hawks, owls, and other animals that eat the rabbits.animals that eat the rabbits.

How would this affect the hawks, owls, How would this affect the hawks, owls, and other animals that eat the rabbits?and other animals that eat the rabbits?

Page 15: Chapter 3 Lesson 2 What Factors Affect Ecosystems? SPI’S: Science: 7.2.3, 7.5.2, 7.2.2, 7.2.3 Reading: 5.1.12, 5.1.3, 5.1.14, 5.1.16, 5.1.20 Language:

Answer…Answer…

The hawks, owls, and other animals would The hawks, owls, and other animals would not have the rabbits to eat; therefore, they not have the rabbits to eat; therefore, they might go hungry. Or, they would have to might go hungry. Or, they would have to

find another food source which might find another food source which might cause another species to go hungry. cause another species to go hungry.

Can you see how a change in population Can you see how a change in population could upset the balance of an ecosystem? could upset the balance of an ecosystem?

Page 16: Chapter 3 Lesson 2 What Factors Affect Ecosystems? SPI’S: Science: 7.2.3, 7.5.2, 7.2.2, 7.2.3 Reading: 5.1.12, 5.1.3, 5.1.14, 5.1.16, 5.1.20 Language:

Question…Question…

What would happen if a population of What would happen if a population of rabbits became too large?rabbits became too large?

Page 17: Chapter 3 Lesson 2 What Factors Affect Ecosystems? SPI’S: Science: 7.2.3, 7.5.2, 7.2.2, 7.2.3 Reading: 5.1.12, 5.1.3, 5.1.14, 5.1.16, 5.1.20 Language:

Answer:Answer:

They would crowd out the other They would crowd out the other species in that area!!species in that area!!

Why would that be a bad thing?Why would that be a bad thing?

Page 18: Chapter 3 Lesson 2 What Factors Affect Ecosystems? SPI’S: Science: 7.2.3, 7.5.2, 7.2.2, 7.2.3 Reading: 5.1.12, 5.1.3, 5.1.14, 5.1.16, 5.1.20 Language:

AnswerAnswer

Ecosystems have limited Ecosystems have limited resources, and can only support resources, and can only support a limited number of living things.a limited number of living things.

Hey…that makes sense!!!Hey…that makes sense!!!

Page 19: Chapter 3 Lesson 2 What Factors Affect Ecosystems? SPI’S: Science: 7.2.3, 7.5.2, 7.2.2, 7.2.3 Reading: 5.1.12, 5.1.3, 5.1.14, 5.1.16, 5.1.20 Language:

Did you know…Did you know…

In an ecosystem, populations areIn an ecosystem, populations are

ALWAYS changing.ALWAYS changing. Old animals die, and new ones are born.Old animals die, and new ones are born. When a tree falls, plants that thrive in When a tree falls, plants that thrive in

sunlight can begin to grow.sunlight can begin to grow.

These are good changes!!!These are good changes!!!

Page 20: Chapter 3 Lesson 2 What Factors Affect Ecosystems? SPI’S: Science: 7.2.3, 7.5.2, 7.2.2, 7.2.3 Reading: 5.1.12, 5.1.3, 5.1.14, 5.1.16, 5.1.20 Language:

Consider the relationship Consider the relationship between between

predators and their preypredators and their prey

Predators are animals that hunt and eat Predators are animals that hunt and eat other animals.other animals.

Prey are animals hunted and eaten by Prey are animals hunted and eaten by predators.predators.

(I’d rather be a predator!)(I’d rather be a predator!)

Page 21: Chapter 3 Lesson 2 What Factors Affect Ecosystems? SPI’S: Science: 7.2.3, 7.5.2, 7.2.2, 7.2.3 Reading: 5.1.12, 5.1.3, 5.1.14, 5.1.16, 5.1.20 Language:

In a healthy ecosystem…In a healthy ecosystem…

The population densities of predators and The population densities of predators and prey are balanced. But remember, we prey are balanced. But remember, we

said certain factors can upset this said certain factors can upset this balance. balance.

For example: Predators and prey are two For example: Predators and prey are two factors that affect the balance of an factors that affect the balance of an

ecosystem.ecosystem.

Page 22: Chapter 3 Lesson 2 What Factors Affect Ecosystems? SPI’S: Science: 7.2.3, 7.5.2, 7.2.2, 7.2.3 Reading: 5.1.12, 5.1.3, 5.1.14, 5.1.16, 5.1.20 Language:

Let’s Read About It:Let’s Read About It:

May I have a volunteer to begin May I have a volunteer to begin reading on P. 95, please? reading on P. 95, please?

Page 23: Chapter 3 Lesson 2 What Factors Affect Ecosystems? SPI’S: Science: 7.2.3, 7.5.2, 7.2.2, 7.2.3 Reading: 5.1.12, 5.1.3, 5.1.14, 5.1.16, 5.1.20 Language:

How might a decrease in How might a decrease in predators affect prey?predators affect prey?

Page 24: Chapter 3 Lesson 2 What Factors Affect Ecosystems? SPI’S: Science: 7.2.3, 7.5.2, 7.2.2, 7.2.3 Reading: 5.1.12, 5.1.3, 5.1.14, 5.1.16, 5.1.20 Language:

Answer:Answer:

The prey populationThe prey population

could grow.could grow.

Page 25: Chapter 3 Lesson 2 What Factors Affect Ecosystems? SPI’S: Science: 7.2.3, 7.5.2, 7.2.2, 7.2.3 Reading: 5.1.12, 5.1.3, 5.1.14, 5.1.16, 5.1.20 Language:

Did you know…Did you know…

Once an ecosystem is changed it may take Once an ecosystem is changed it may take hundreds of years to recover!hundreds of years to recover!

In some cases, it is changed FOREVER!!In some cases, it is changed FOREVER!!

Page 26: Chapter 3 Lesson 2 What Factors Affect Ecosystems? SPI’S: Science: 7.2.3, 7.5.2, 7.2.2, 7.2.3 Reading: 5.1.12, 5.1.3, 5.1.14, 5.1.16, 5.1.20 Language:

Let’s Review:Let’s Review:

What factors affect ecosystems?What factors affect ecosystems?

Page 27: Chapter 3 Lesson 2 What Factors Affect Ecosystems? SPI’S: Science: 7.2.3, 7.5.2, 7.2.2, 7.2.3 Reading: 5.1.12, 5.1.3, 5.1.14, 5.1.16, 5.1.20 Language:

Answer:Answer:

PopulationPopulation

PredatorsPredators

PreyPrey

Page 28: Chapter 3 Lesson 2 What Factors Affect Ecosystems? SPI’S: Science: 7.2.3, 7.5.2, 7.2.2, 7.2.3 Reading: 5.1.12, 5.1.3, 5.1.14, 5.1.16, 5.1.20 Language:

Review:Review:

What factors can cause the size of What factors can cause the size of a population of living things to a population of living things to

change?change?

Page 29: Chapter 3 Lesson 2 What Factors Affect Ecosystems? SPI’S: Science: 7.2.3, 7.5.2, 7.2.2, 7.2.3 Reading: 5.1.12, 5.1.3, 5.1.14, 5.1.16, 5.1.20 Language:

Answer:Answer:

Climate changeClimate change Volcanic eruptionsVolcanic eruptions FiresFires DroughtsDroughts FloodsFloods Alien speciesAlien species Lack of resourcesLack of resources

Page 30: Chapter 3 Lesson 2 What Factors Affect Ecosystems? SPI’S: Science: 7.2.3, 7.5.2, 7.2.2, 7.2.3 Reading: 5.1.12, 5.1.3, 5.1.14, 5.1.16, 5.1.20 Language:

Review:Review:((Cause and Effect)Cause and Effect)

Why do alien species often thrive Why do alien species often thrive in their new ecosystems?in their new ecosystems?

Page 31: Chapter 3 Lesson 2 What Factors Affect Ecosystems? SPI’S: Science: 7.2.3, 7.5.2, 7.2.2, 7.2.3 Reading: 5.1.12, 5.1.3, 5.1.14, 5.1.16, 5.1.20 Language:

Answer:Answer:

Often the alien species have no Often the alien species have no natural predators in the new natural predators in the new

ecosystem.ecosystem.

Page 32: Chapter 3 Lesson 2 What Factors Affect Ecosystems? SPI’S: Science: 7.2.3, 7.5.2, 7.2.2, 7.2.3 Reading: 5.1.12, 5.1.3, 5.1.14, 5.1.16, 5.1.20 Language:

Way To Go!!!Way To Go!!!

This is the end of Chapter 3 Lesson 2.This is the end of Chapter 3 Lesson 2.

Now it’s YOUR time to shine…Now it’s YOUR time to shine…

In your journal write everything you’ve In your journal write everything you’ve learned about the factors that affect learned about the factors that affect

ecosystems.ecosystems.

Make me proud champs!!!Make me proud champs!!!


Related Documents
7.2.3 Porous Media Conditions · 2014. 3. 31. · 7.2.3 Porous Media Conditions The porous media model can be used for a wide variety of single phase and multiphase problems, including

7.2.3 Porous Media Conditions · 2014. 3. 31. · 7.2.3...

Category: Documents
7.2.3 Cuentas y Subcuentas

7.2.3 Cuentas y Subcuentas

Category: Documents
PREFEITURA MUNICIPAL DE SAPUCAIA DO SUL · graduados na área devidamente cadastrados no CNES. 5.1.20 Apresentar Relação de Profissionais vinculados à empresa. 5.1.20.1 Anexar

PREFEITURA MUNICIPAL DE SAPUCAIA DO SUL · graduados na...

Category: Documents
SPI’s Determine the effects of the Supreme Court's decisions on Civil Rights Identify significant events in the struggle for Civil Rights Match leading.

SPI’s Determine the effects of the Supreme Court's...

Category: Documents
7.2.3 Estructura vertical de las corrientes

7.2.3 Estructura vertical de las corrientes

Category: Documents
7.2.3 B-Bäume (2/33)

7.2.3 B-Bäume (2/33)

Category: Documents
Water Managementspecialty-products.com/pdf/brochures/SPI Polyurea - Water...SPI’s products are manufactured under a stringent quality assurance program. SPI offers year-round 24/7

Water Managementspecialty-products.com/pdf/brochures/SPI...

Category: Documents
SC Standard 7.2.3 Compare the body shapes of bacteria * Spiral * Coccus * Bacillus.

SC Standard 7.2.3 Compare the body shapes of bacteria *...

Category: Documents
Language Arts Minute 2nd Grade 2nd Quarter SPI’s.

Language Arts Minute 2nd Grade 2nd Quarter SPI’s.

Category: Documents
7.2.3 サービスマネジメント95 Smart City Reference Architecture 7.2.3 サービスマネジメント サービスマネジメントは、都市OSと連携するスマートシティサービスを管理し、適切に運用

7.2.3 サービスマネジメント95 Smart City Reference....

Category: Documents
web.mayaeducacion.com€¦ · Web viewM.5.1.20. Graficar y analizar el dominio, el recorrido, la monotonía, ceros, extremos y paridad de las diferentes funciones reales (función

web.mayaeducacion.com€¦ · Web viewM.5.1.20. Graficar y....

Category: Documents
System Integration Guidelines - SAMSON · 2017-08-22 · 6.9 Connectingpassiveandactivesensorsaswellasfinalcontrolelements ... 7.2.3 Terminatingresistors ... • Cableconverterfortwo-wirecircuit

System Integration Guidelines - SAMSON · 2017-08-22 ·...

Category: Documents