DSERT - 7 - Science :: Acids, Bases and Salts

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Go To: DSERT-Science-Grade 7

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Dear Volunteer Teacher,

The lesson plan provides an overall picture of what you need to teach. It is recommended that you follow the objectives and the learning outcomes stated in the lesson plan.

We suggest that that you read the chapter thoroughly and research on how to teach the topic effectively to meet the learning outcomes.

Kindly note, while the lesson plan is a guide to teach, you can also add your own teaching elements to enhance the learning process of the children.

[Edition 2021]

Acids, Bases and Salts Lesson Plan - (Lesson Plan - English)


[Edition 2019]

https://drive.google.com/open?id=17-uaqcd4VPYXLJuZY5R3TtNSvo1TCg1A (Lesson Plan - English)


https://drive.google.com/open?id=1c5rE546g3aMTNAr4Ok0V1S_U2p0Ff-Tc (PPT - English)


You may use the content as it is or download and modify them to suit the students requirements.

If you feel any major modifications or additions are carried out by you in the form of adding any new activity, presentations, videos etc. we request you to send the modified version to submitcontent@evidyloka.org for enabling upload of the modified version.


The worksheets of the lesson can be accessed from the worksheet tab.


[Contributor - Kripa S]


https://www.youtube.com/watch?v=1U8Jl8DaXVw&list=PLHOGBLPrsnMpFFt1cXF4Fqrq4DdZpLHdI (English - Acids, Bases and Salts)


[Contributor - Keerthi Deshpande]

Lesson Plan version 1.1 videos

https://www.youtube.com/watch?v=3_6WtPg8glQ (Litmus paper test)

https://www.youtube.com/watch?v=SeKsLi_6WkY (Mg reacts with hcl)

https://www.youtube.com/watch?v=WGx55g0YYm4( (zinc reacts with H2SO4)

https://www.youtube.com/watch?v=3eCfx0Or8lU (calcium carbonate + hydrochloric acid)

https://www.youtube.com/watch?v=dJ9EyW58ntA (Sodium bicarbonate + Hydrochloric acid)

https://www.youtube.com/watch?v=8UiuE7Xx5l8 (Neutralization reaction)



[Contributor - Sanjana Reddy Mohan]

Lesson Plan version 1.1 video

https://www.youtube.com/watch?v=Bnj2lpD0Z3w (Red and blue litmus test)

https://www.youtube.com/watch?v=Olezbt9cxfo (Turmeric as indicator)

https://www.youtube.com/watch?v=SggBRVQ0gtg (China rose as indicator)

https://www.youtube.com/watch?v=R750Lp3wb3s (Neutralization)


[Contributor - Anu Nived]


https://i.ytimg.com/vi/WkNVAqmPLfw/hqdefault.jpg (acids found in nature)

http://180nutrition.com.au/wp-content/uploads/2016/11/180_nutrition_benefits_of_drinking_lemon_water.jpg (lemon - citric acid)

https://i.ytimg.com/vi/1VVug7tffGo/hqdefault.jpg (acids in daily life)

https://mozaiclife.files.wordpress.com/2015/03/gambar-bunga-sepatu-2.jpg?w=524 (natural indicator - China rose)

https://theeasyblues.files.wordpress.com/2014/08/img_4057_2.jpg (natural indicator - Red cabbage)

[Contributor - Keerthi Deshpande]

Lesson Plan version 1.1 images

https://i.pinimg.com/originals/8f/f2/3b/8ff23bf754d373c2c25f008fba9f9384.jpg (citric acid)

https://i.ytimg.com/vi/zORh_F0Cu8o/maxresdefault.jpg (vitamin C)

http://industrynewsblog.com/wp-content/uploads/2019/01/Natural-Tartaric-Acid-Market-348x215.jpg (tartaric acid)

https://i.pinimg.com/originals/56/7f/97/567f9747c487067b8b9224db30620a0c.jpg (folic acid)

https://geniusteacher.in/community/img/mineral-acids-cefb4d3e52-540x540.jpg (mineral acids)

https://image.slidesharecdn.com/7thgrade-ch-3sec-3-4describingacidsbases-acidsandbasesinsolution-100526095853-phpapp02/95/8th-grade-ch-3-sec-34-describing-acids-basesacids-and-bases-in-solution-7-728.jpg (Acids and bases)

http://simple-chemical-reactions.weebly.com/uploads/4/8/0/0/48009051/2713416_orig.jpg (acids reacts with metals)

http://ask.learncbse.in/uploads/db3785/original/2X/7/7129abee0431496cdfdce97af0fec90615c825a9.png

(Reaction of acids with carbonates and bicarbonates)

https://sc01.alicdn.com/kf/HTB1avqNKVXXXXXkXVXXq6xXFXXXJ/Karella-Bitter-gourd-.jpg (Bitter gourd)

https://d1e4pidl3fu268.cloudfront.net/9b413da0-41eb-491b-a410-47c24d4826a7/neutralization.crop_283x212_0,57.preview.jpg (neutralization reaction)

https://previews.123rf.com/images/mactep78/mactep781711/mactep78171100016/90383726-colorful-ph-scale.jpg (pH scale)

https://www.alleganynutrition.com/wp-content/uploads/2017/07/digestive_tract.png (Human digestive tract pH range chart)


[Contributor - Kripa S, Aruna Bhat]


1. Ask students to name some common objects that contain acids, bases and salts.

2. Take a tablespoonful of turmeric powder. Add a little water and make a paste. Make turmeric paper by depositing turmeric paste on blotting paper/filter paper and drying it. Cut thin strips of the yellow paper obtained. Put a drop of soap solution on the strip of turmeric paper. What do you observe?

3.Name some common objects containing neutral components.

4. https://drive.google.com/open?id=0BzNF2YyqQxJ-YTZadGtWR2J0S3c

[Contributor - Keerthi Deshpande]

Lesson Plan version 1.1 activities

1. Squeeze out the juice of a lime into a bowl. Dip a blue litmus paper into it. What do you observe? Acids turn blue litmus red.

2. Dip a red litmus paper in a solution of sodium hydroxide solution. What do you observe?

3. Make your own litmus paper at home. Boil some pieces of red cabbage in a vessel of water. Cool and strain out the coloured water. Cut strips of blotting paper and dip them into this coloured solution. Remove and place them on a plastic sheet to dry. Your home made litmus paper is ready.


[Contributor - Sanjana Reddy Mohan]

Lesson Plan version 1.1 activities

1. Take some lemon juice in a cup and add a drop of red litmus to it. Note the colour change. Repeat the same by adding blue litmus and note the colour change. Repeat the experiment for the following substances: Tap water, detergent solution, aeriated drink, soap solution, shampoo, common salt solution, sugar solution, vinegar, baking soda solution, milk of magnesia, washing soda solution, lime water

2. Make a paste of turmeric with water and blot it on filter paper/blotting paper. Cut into thin strips. Put a drop of soap solution on it. What do you observe?

3. Take china rose petals in a beaker, pour hot water over it and keep it until the water changes colour. Use this coloured water as an indicator. Test hydrochloric acid solution with this indicator.

4. Fill one fourth of a test-tube with dilute hydrochloric acid. Note its colour and the colour of phenolphthalein solution. Add 2-3- drops of phenolphthalein solution to the test tube. To this solution, gently add a drop of sodium hydroxide solution and stir. Continue to add sodium hydroxide solution drop by drop, stir and observe any colour change. Stop adding as soon as the mixture turns pink. Touch test tube immediately, you will notice that it is hot. Now add a drop of hydrochloric acid solution. Note colour change. Add a drop of sodium hydroxide solution and note the colour change.


[Contributor - Aruna Bhat]


https://drive.google.com/open?id=0BzNF2YyqQxJ-eDU2ZWlTX2VQMkE

[Contributor - Keerthi Deshpande]

Lesson Plan version 1.1 PPT

https://drive.google.com/open?id=14GshGvOAI4qWJ3wufY-OMd1MfVJIcl11


[Contributor - Sanjana reddy Mohan]

Lesson Plan version 1.1 PPT

https://drive.google.com/open?id=1c5rE546g3aMTNAr4Ok0V1S_U2p0Ff-Tc (PPT - English)


[Contributor - Apoorva Ramachandra]

Term Transliterated Term Translated Term
Acid ಆಸಿಡ್ ಆಮ್ಲ
Base ಬೇಸ್ ಪ್ರತ್ಯಾಮ್ಲ
Salt ಸಾಲ್ಟ್ ಲವಣ
Organic Acid ಆರ್ಗಾನಿಕ್ ಆಸಿಡ್ ಜೈವಿಕ ಆಮ್ಲ
Mineral Acid ಮಿನರಲ್ ಆಸಿಡ್ ಖನಿಜಯುಕ್ತ ಆಮ್ಲ
Physical Property ಫಿಸಿಕಲ್ ಪ್ರಾಪರ್ಟಿ ಭೌತಿಕ ಲಕ್ಷಣ
Chemical Property ಕೆಮಿಕಲ್ ಪ್ರಾಪರ್ಟಿ ರಾಸಾಯನಿಕ ಲಕ್ಷಣ
Indicator ಇಂಡಿಕೇಟರ್ ಸೂಚಕ
Neutralization ನ್ಯೂಟ್ರಲೈಸೇಷನ್ ತಟಸ್ಥೀಕರಣ
Formation ಫಾರ್ಮೇಷನ್ ಸಂಯೋಜನೆ
Sour ಸೋರ್ ಹುಳಿ
Exothermic Reaction ಎಕ್ಸೋಥರ್ಮಿಕ್ ರಿಯಾಕ್ಷನ್ ಬಹಿರುಷ್ಣಕ ಕ್ರಿಯೆ
Conductivity ಕಂಡಕ್ಟಿವಿಟಿ ವಾಹಕತೆ
Solubility ಸೋಲ್ಯುಬಿಲಿಟಿ ದ್ರಾವ್ಯತೆ
Reaction ರಿಯಾಕ್ಷನ್ ವರ್ತನೆ
Corrosion ಕೊರ್ರೋಷನ್ ಸಂಕ್ಷಾರಣ

[Contributor - Aruna Bhat]


https://drive.google.com/open?id=0BzNF2YyqQxJ-NTdqdVE1bTl4WEE

[Contributor - Meghana Janardhan]

https://drive.google.com/open?id=1rER1jyis6U9gTjfckJJgZMX6CTbqUF1M (Worksheet 1)


Worksheets [Version 2021]

https://s3.ap-south-1.amazonaws.com/prod.evidyaloka.org/couse_documents/worksheet/DSERT/Science/T+4312_ST+5020_V1.pdf (Worksheet 1)

https://s3.ap-south-1.amazonaws.com/prod.evidyaloka.org/couse_documents/worksheet/DSERT/Science/T+4312_ST+5021_V1.pdf (Worksheet 2)

https://s3.ap-south-1.amazonaws.com/prod.evidyaloka.org/couse_documents/worksheet/DSERT/Science/T+4312_ST+5022_V1.pdf (Worksheet 3)

https://s3.ap-south-1.amazonaws.com/prod.evidyaloka.org/couse_documents/worksheet/DSERT/Science/T+4312_ST+5023_V1.pdf (Worksheet 4)

https://s3.ap-south-1.amazonaws.com/prod.evidyaloka.org/couse_documents/worksheet/DSERT/Science/T+4312_ST+5024_V1.pdf (Worksheet 5)

Answerkeys [Version 2021]

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Worksheets [Version 2021]

https://s3.ap-south-1.amazonaws.com/prod.evidyaloka.org/couse_documents/worksheet/DSERT/Science/T+4312_ST+5020_V1.pdf (Worksheet 1)

https://s3.ap-south-1.amazonaws.com/prod.evidyaloka.org/couse_documents/worksheet/DSERT/Science/T+4312_ST+5021_V1.pdf (Worksheet 2)

https://s3.ap-south-1.amazonaws.com/prod.evidyaloka.org/couse_documents/worksheet/DSERT/Science/T+4312_ST+5022_V1.pdf (Worksheet 3)

https://s3.ap-south-1.amazonaws.com/prod.evidyaloka.org/couse_documents/worksheet/DSERT/Science/T+4312_ST+5023_V1.pdf (Worksheet 4)

https://s3.ap-south-1.amazonaws.com/prod.evidyaloka.org/couse_documents/worksheet/DSERT/Science/T+4312_ST+5024_V1.pdf (Worksheet 5)

Answerkeys [Version 2021]

Blank


[Contributor - Aishwarya VH]

https://drive.google.com/open?id=15DSgW_g5gHYszX-sKZaVYLKiBCHhqCvU (Question Bank - English)

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