PROJECT BASED-LEARNING CHEMISTRY FORM 4

Project Based-Learning

Presentation

chemistry Form 4 Ardent

Index

1. acknowledgement

8. procedure

2. introduction

9. result of experiment

3. objective

10. experiment video

4. project title

11. conlusion

5. project implementation date

12. estimation expenses

13. knowledges

6. list of ingredients

7. apparatus list

14. references

acknowledgement

The success and outcome of this project required a lot of guidance and assistance from many people and we were extremely fortunate to have got this all along with the completion of our project. Whatever we have done is only due to such guidance and assistance and we should not forget to thank them. I respect and thank Mr.Harun Samat for giving us an opportunity to do this project and providing us all support and guidance which made us complete the project on time. We are extremely grateful to him for providing such nice support. We are really grateful because we managed to complete this project within the time given by Mr.Harun. This project cannot be completed without the effort and co-operation of our group members. Group member's Amiera Nabila, Putri Anis Qistina, Nur Hanini Khairina and Nur Khadijah. Last but not least, we would like to express our gratitude to our friends for their support and willingness to spend some time with us.

introduction

There are various activities that can be carried out to determine the colour changes of ingredients used in daily life such as tap water, carbonated drinks, coffee water, lemon juice and so on. To determine the pH value we need a pH indicator to identify whether the substances are acidic, alkaline or neutral. Apart from the pH indicators found in chemical laboratories, we can also use natural ingredients such as purple cabbage.

3. objective

identify substances that have been found in a chemical

understand the uses of chemicals in daily life

appreciate the importance of the use of chemicals especially those involving ionic compounds and covalent compounds

project title

manufacture of pH indicator using purple cabbage.

5. project implementation date

25 october 2021

12 october 2021

7. apparatus list

6. list of ingredients

1. knife
2. cutting board
3. spoon
4. jar&jug
5. filter
6. container
7. cup
8. squeezer

1. purple cabbage
2. coffee
3. lemon
4. tomato
5. carbonated drink
6. bleach
7. soap
8. tap water

+ Info

8. procedure

=>

=>

cut the cabbage into small pieces using knife

let the cabbage soak in boiling water for 20 minutes until the water turns purple

put the chopped cabbage into the jar

=>

=>

stir coffee with water in a cup

cut the lemon into pieces

strain the cabbage soaking water into the jug

=>

=>

cut the tomato into small pieces

squeeze the chopped tomatoes using a squeezer and put in a cup

squeeze the chopped lemons using a squeezer and put in a cup

=>

=>

pour bleach into the cup

pour the soap into a cup filled with water and stir with spoon

pour carbonated water into the cup

III. tomato juice

V. coffee water

IV. tap water

II. lemon juice

I. carbonated drink

VII. soap water

VI. soap water

=>

Pour the filtered cabbage juice into each cup ( I,II.III,IV,V,VI,VII )

+ Info

+ Info

9. result of experiment

tap

tap

tap

tap

tap

tap

tap

10. experiment video

11. conclusion

materials we used in daily life have acidic, alkaline and neutral properties

12. estimation expenses

Vegetable pigments that can dissolve in water are major types of all natural edible pigment. Cabbage pigment is one of the newly developped vegetable pigments. This thesis measures absorbent spectrum of cabbage pigment and the suitable condition on which it appears purple. The thesis also observes that different pH influence the pigment and that these additions have an influence on its stability in the daylight. The thesis provides some bases for development and application of cabbage pigment.

Lemon juice has a low pH, mainly due to the high concentration of citric acid. Don't be confused about the pH of lemon juice and its effects on your body. Lemons and other citrus fruits have acidic juice. This means their pH is less than 7

13. knowledges

Bleach is one of the most common cleaning supplies in households and commercial settings. This particular product has a pH between 11 and 13. Its high level of alkalinity is what makes it corrosive

book

Toh Kim Kau, Yeap Top Kheng,(2019), Selangor, Darul Ehsan : Sasbadi Sdn.Bhd

14. references

internet

http://notacikgushikin.blogspot.com/2018/07/sains-asid-dan-alkali.html https://en.cnki.com.cn/Article_en/CJFDTotal-JDNS200605016.htm

Team

Khadijah

Hanini

Putri

Amiera

Thanks!