appendices of makro teaching

8/3/2019 Appendices of Makro Teaching

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PARIMALA A/P RETHINAM D20102041773

Appendix 1: Set Induction

Appendix 2: Activity 1- Experiment- Lets do it!

Procedures of experiment:1. Predict the result before start the experiment.2. Beaker is filled with 100ml of distilled water.3. One spoonful of sugar is put in the water.4. The solution is stirred with spatula.5. Observe whether the substance can dissolve in water or not.6. Record your findings in a table.7. Repeat the experiment by using other materials.

Predict the result and tick (/) what you have observed:

Materials Predictions ObservationsCan be seen

in water Cannot be

seen inwater

Can be seenin water

Cannot beseen inwater

Colour of thesolution

Sugar SaltSand

Instant coffee powder TalcumLeaves

Milo Powder Milo Drink


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The next step:1. Fold the filter papers and put on top of the filter funnel.2. A simple funnel is made.

3. The experiment is continued by pouring the solution into the filter and records theresults.4. Taste the solution of sugar, salt and instant coffee powder.

Materials Materials left on the filter paper? (/) Taste of solutionsYes No

Sugar Sand Do not taste

Instant coffee powder

Salt

Talcum Do not tasteLeaves Do not taste

Conclusion:

Materials that dissolve in water Materials that do not dissolve in water

Warning: Taste only edible materials!!


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Suggested Answers for Activity 1

Predict the result and tick (/) what you have observed:

Materials Predictions ObservationsCan beseen inwater

Cannot beseen inwater

Can be seenin water

Cannotbe seen in

water

Colour of the solution

Sugar /Salt /Sand /


/

Talcum /Leaves /

Materials Materials left on the filter paper? (/) Taste of solutionsYes No

Sugar / SweetSand / Do not taste


/ Sweet & coffee taste

Salt / SaltyTalcum / Do not tasteLeaves / Do not taste

Conclusion:

Materials that dissolve in water Materials that do not dissolve in waterSugar, salt and instant coffee powder Sand, talcum and leaves.


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Suggested Answers for Worksheet of Closure

Tick ( / or x ) in the following statements.

1. Sugar dissolves in water to form a solution. This solution tastes sweet. ( / ) 2. Flour does not dissolve in water. ( x )

3. When coffee powder is added to water and stirred, the water looks clear. ( x )

4. We can separate salt from the salt solution using a filter. ( / )

5. When sugar dissolves in water, it disappears and becomes a solution. ( / )

Circle the correct answers.

1. These materials dissolve in water.A. Sand B. Flour C. Sugar

2. These materials cannot dissolve in water.A. Talcum powder B. Milk powder C. Salt

3. The solution is clear when this material dissolve in water.A. Coffee powder B. Salt C. Milo powder

4. We can filter out this material from a solution.A. Nails B. Milk powder C. Sugar

5. The colour of solution when this material dissolves in water.A. Colorings powder B. Salt C. Sugar

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