Subject : Science

Class : 2E

Date : 30 June 2008

Time : (40minutes)

No. Student : 25 students

Theme : MATTER IN NATURE

Learning Area : 1.0 Water and solution

Learning Objectives : 1.4 Analysing solution and solubility

Learning Outcomes :

- Explain what suspension is

- Explain what solubility

Previously Learnt Concept : Students learnt the compound of water in form one topic of the variety of earth resources on earth.

At the end f the lesson, student should be able

a) Content Knowledge

Record the data in the results table accurately in writing.

Conduct the experiment in groups to illustrate the difference between a solution and a suspension.

b) Science Process Skills (SPS) / Thinking Skills Thinking Strategies (STS)

Observe the changing occur in the experiment. Making conclusion after doing the experiment.

c) Noble Values / Scientific Attitudes

Being systematic when doing the experiment

Teaching and Learning Resources

For 1 groups ( 4 groups)

NO. Apparatus/ Materials Quantities1 Zink nitrate powder Half spatula2 Sodium chloride powder Half spatula3 Starch powder Half spatula4 Cornflour powder Half spatula5 50ml beaker 4 units6 Glass rod 1 unit7 spatula 1 unit

PHASE(DURATION)

CONTENT KNOWLEDGE TEACHING AND LEARNING ACTIVITIES

NOTES

Eliciting ideas(5 minutes)

Teacher asks three students to come in front the

class to do the demonstration.

Teacher give the two students with the different

things. One student with a spatula of sugar and

one student with a spatula of flour.

Students will put the materials in the 25ml of

water and stir it.

Students and teacher will observe what will

happen to the sugar and flour. And what solution

can be observed.

Tell student meaning of solution and

suspension(bahan terampai)

- Teacher guides the

students to do the

demonstrations

- Teacher writes the

students answer on the

white board.

- Teacher writes the topic

of the lesson on the

whiteboard.

SPS : Predicting

TSTS : Generating

ideas

Relating

TLR : SugarFlourBeakerWaterGlass rod

Restructuring ideas(15 minutes)

ActivityTitle : Solution and suspension

Aim :To show the differences between a solution and suspension.

Students form group of 5

people

Students work in group

to do the experiment with

SPS : Communicating

TSTS : Generating ideas

Method :Refer to science process skill books.

Result :Table of result in the science process skill books

Conclusion Solution contains solute dissolved completely in waterSuspension form when solute does not dissolve completely in water.

teacher guidance.

Students do the

experiment according to

the producer in the

Science process Skill

Book.

Students record the data

in their science process

skill book immediately

after the experiment is

done. .

Teacher discusses with

the students the question.

TLR :WaterAnhydrous calcium chlorideFilter paperThreadWoodGas jar100ml beakerCellophane tapeBig bottle

Application Ideas(15 minutes)

Refer to the analysis phase for the application. Teachers discuss with the

student the question and correct answer in analyzing phase.

SPS Communicating Predicting

TSTS Relating

TLR Science

Experiment text book.

Review(5 minutes)

Solution contains solute dissolved completely in waterSuspension form when solute does not dissolve completely in water.

Teacher asks questions

about today lesson.

Students summarize what

they had learnt.

SPS/TSTS/MS Communicating

SA/Noble Values Being systematic

Reflections: __________________________________________________________________________________________________________________________________________________________________________________________________________________

ACTIVITY

Title :

Solution and suspension

Aim :To show the differences between a solution and suspension.

Hypothesis:

Zinc nitrate powder and sodium chloride powder can dissolved completely in water but

starch powder and corn flour cannot dissolve in water

Variables:

Manipulated variable: Types of materials use (zinc nitrate powder, sodium chloride

powder, starch powder and corn flour

Responding variable: solution that form

Fixed variable: volume of water

Materials/ apparatus:

NO. Apparatus/ Materials Quantities1 Zink nitrate powder Half spatula2 Sodium chloride powder Half spatula3 Starch powder Half spatula4 Corn flour powder Half spatula5 50ml beaker 4 units6 Glass rod 1 unit7 spatula 1 unit

Procedure:

1. Add half a spatula of zinc nitrate powder to 25ml water and stir slowly.

2. Record your observations of the condition of the mixture

3. Repeat step 1 using sodium chlorides powder, starch powder and corn

flour.

Result :

Write down the observation in the Science process skill book.

Conclusion:

Solution contains solute dissolved completely in waterSuspension form when solute does not dissolve completely in water.

Reference:1. Yeap Tok kheng, 2007. Science Process Skill Form 2. Longman