Peka Science PMR 2

Theme : Main and The Variety

of Living Things

Name : Sophia Teo Yong Nan Class : 2A

Form Teacher: Pn. Nor Azlita

SMK TAMAN CONNAUGHT,SMK TAMAN CONNAUGHT,CHERAS, KUALA LUMPUR.CHERAS, KUALA LUMPUR.

ACKNOWLEDGEMENTACKNOWLEDGEMENT CONTENTCONTENT

1. THEME 2. LEARNING AREA3. LEARNING OBJECTIVES4. AIM

INTRODUCTIONINTRODUCTION PROCEDUREPROCEDURE DISCUSSIONDISCUSSION

a. DISCUSSION 1b. DISCUSSION 2

c. DISCUSSION 3 CONCLUSIONCONCLUSION REFERENCE SOURCEREFERENCE SOURCE

I want to thank my science teacher Pn. Nor Azlita because she gave me some tips to complete the scrap book. After that, I want to thank to my parents Teo Yook Kiang and Ang Hwei Lan as well because they gave me some money to buy stationary and help me a lot in order to complete the portfolio.

Besides that, I also feel grateful that my friends provide me some informations and pictures while doing the folio.

Last but not least, I want to thank all the respondens for giving their hands to me so that I’ m able to finish the portfolio in time. All said, thank you from the bottom of my heart to everyone that helps me when I was facing problems in doing the scrap book.

Theme

Main and The Variety of Living Things

Learning Area

Interdependence among Living Organisms and The Environment

Learning Objectives

Synthesizing food web

AimI. To identify producer and

different levels of consumerII. To classify consumers into

three levels of consumersIII. To classify a few organism into

two groups based on their role in a food

IV. To construct a few food chains and forms a food web

An ecosystem consists of living organism and the environment. The living organism interacts with one another and with the environment. The living organisms depends on one another and on the environment for their survival. The interdependence among organism for food helps to maintain the balance in nature. Here we choose the field as a case of study.

Level

Activity Time(Date)

Action

I Collect pictures of organisms from different sources

1 week

Any resources by accessing the internet

II Based on collected pictures (level I),construct at least 3 food chain s

2 days

Draw at least three food chains based on the pictures

III Based on level II, construct food web

2 days

Draw food web based on the food chains

Plan of action

Food ChainFood Chain A food chain is a linked

series of organisms, each of which is the food for the next in line. The food chain always begins with producers.

Food Chain 1Food Chain 1

Food Chain 2Food Chain 2

Wheat Caterpillar

Frog

Wheat Caterpillar

Bird Eagle

Eagle

Food Chain 3Food Chain 3

Food Chain 4Food Chain 4

Food Chain 5Food Chain 5

Food Chain 6Food Chain 6

Wheat Grasshopper

Bird

Eagle

Wheat FrogGrasshopper

Eagle

Wheat

Eagle

RatWheat

RatEagle

Snake

1. State the similiarity between caterpillar, grasshopper and rat. They are primary consumers.

Primary Consumers obtain food from producers.

Most of the primary are animals that feed on plants only.

E1 : C2 E1 : C2 ( a )( a )

2. State the similiarity of frog, bird and snake. They are secondary consumers.

Secondary consumers obtain food from primary consumers.Most of the secondary consumers are animals that feed on both plants and other animals.

E1 : C2 E1 : C2 ( a )( a )

Tertiary consumers obtain food from secondary consumers. Most of the tertiary consumers are animals that feed on other animals

Food WebFood WebFood chain can be inter-

connected to form a food web. The food relationship among organisms is better represented by a food web because of the interdependence among different organisms in a community.

Bird

Frog

Grasshopper

Wheat

Rat

Eagle

Snake

Caterpillar

Figure 1 shows oragnisms P, Q, R and S.

(a)Based on your observation in Figure 1, state the role of each of the four organisms P, Q, R and S ina food web.

P : Primary Consumer Q : Producer

R : Primary Consumer S : Producer

QP R S

b) Classfy the organisms P, Q, R and S into two groups based on their role ina food web.

E1 : C2 ( b, d )E1 : C2 ( b, d )

Role in food web

Organisms

c) Based on the organisms below, use other criteria to clssify grasshoper, caterpillar, snake and bird.E1 : C2 ( c )E1 : C2 ( c )

PhysicalCharacteristic

Name of organisms

A food web is made up of few chains. An increase or decrease in the number of organisms in a level will affect the food balanced.

Example:

Wheat RatEagle

Snake

Increase Decrease Decrease Decrease