DSERT - 7 - Science :: Acids, Bases and Salts
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[Author - Anu Nived]
Objective: To teach the students about acids/bases/salts and their properties
Subtopics to be covered:
- Types of acids
- Indicators and natural indicators around us
- Neutralisation
Learning Outcome:
- Students know about various acids, bases and salts and their properties and uses .
- They should be able to give examples of acids, bases and salts from our everyday life.
-They know about pH value and its importance in our daily life
- They should be able to give examples of acids, bases and salts from our everyday life.
[Author - Kripa S]
http://ktbs.kar.nic.in/new/website%20textbooks/class7/7th-kannada-science-01.pdf#page=97 (Kannada Medium)
http://ktbs.kar.nic.in/new/website%20textbooks/class7/7th-english-science-01.pdf#page=97 (English Medium)
[Author - 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)
[Author - Kripa S, Rudrakanth]
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
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