DSERT - 7 - Science :: Respiration in Organisms
Go To: DSERT-Science-Grade 7
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[Contributor - Manimaran M C]
Please find below the detailed lesson plan and PPT for this chapter in the language mentioned against the respective link. While the lesson plan will give an overall flow of the lesson, the PPT will include lesson flow as well as the presentations for the class.
https://drive.google.com/open?id=1ZKR23wg6FRBCjtPFvygHn78MoA95EwV6 (Lesson Plan - English)
https://drive.google.com/open?id=1Ad7YN6KdBFfcEeQvtTGFy-kRr2JjAs9R (PPT - English)
You may use the content as it is or download and modify them to suit the students requirements.
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The worksheets of the lesson can be accessed from the worksheet tab.
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[Contributor - Rini Jose]
http://www.ktbs.kar.nic.in/New/website%20textbooks/class7/7th-kannada-science-02.pdf#page=3 (Kannada)
http://www.ktbs.kar.nic.in/New/website%20textbooks/class7/7th-english-science-01.pdf#page=122 (English)
[Contributor - Manimaran MC]
Lesson Plan version 1.1 video
https://www.youtube.com/watch?v=Iukjc6DKhJ4 (Earthworm)
https://www.youtube.com/watch?v=p_Z510NWnPQ (Frog)
https://www.youtube.com/watch?v=OwjvABbRjdA (Frog)
https://www.youtube.com/watch?v=bEeTlm5Hlq4 (Fish)
https://www.youtube.com/watch?v=j2XLR638Acw (Fish)
https://www.youtube.com/watch?v=j2XLR638Acw (Plants)
[Contributor - Manimaran M C]
Lesson Plan version 1.1 activities
1. Close your nostrils and mouth tightly and look at a watch. What did you feel after some time? How long were you able to keep both of them closed? Note down the time for which you could hold your breath
2. Take a slender, clean test tube or a glass/plastic bottle. Make a hole in its lid and fix it on the bottle. Pour some freshly prepared lime water in the test-tube. Insert a plastic straw through the hole in the lid in such a way that it dips in lime water. Student should blow gently to see if there is a change in colour. Colour changes because exhaled air contains Carbon-di-oxide reacts with Lime water.
3. Find out how many times you breathe in and breathe out in a minute? Did you inhale the same number of times as you exhaled? Now count your breathing rate (number of breaths/minute) after brisk walk and after running. Record your breathing rate as soon as you finish and also after complete rest. Tabulate your findings and compare your breathing rates under different conditions. from this activity, one can realize that whenever a person needs extra energy, he/she breathes faster.
4. Measure the size of the chest with measuring tape after taking deep breath and Exhalation. Measure the size of the chest again when expanded and indicate which classmate shows the maximum expansion of the chest. This way students can understand the mechanism of breathing by a simple model.
[Contributor - Manimaran MC]
Lesson Plan version 1.1 PPT
https://drive.google.com/open?id=1Ad7YN6KdBFfcEeQvtTGFy-kRr2JjAs9R (PPT - English)
[Contributor - Meghana Janardhan]
https://drive.google.com/open?id=1iD34u1WyDGgfJtQkca97Rmxb74S17k9E (Worksheet 1)
Worksheets [Version 2021]
https://s3.ap-south-1.amazonaws.com/prod.evidyaloka.org/couse_documents/worksheet/DSERT/Science/T+4317_ST+5036_V1.pdf (Worksheet 1)
https://s3.ap-south-1.amazonaws.com/prod.evidyaloka.org/couse_documents/worksheet/DSERT/Science/T+4317_ST+5037_V1.pdf (Worksheet 2)
https://s3.ap-south-1.amazonaws.com/prod.evidyaloka.org/couse_documents/worksheet/DSERT/Science/T+4317_ST+5038_V1.pdf (Worksheet 3)
https://s3.ap-south-1.amazonaws.com/prod.evidyaloka.org/couse_documents/worksheet/DSERT/Science/T+4317_ST+5039_V1.pdf (Worksheet 4)
https://s3.ap-south-1.amazonaws.com/prod.evidyaloka.org/couse_documents/worksheet/DSERT/Science/T+4317_ST+5040_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+4317_ST+5036_V1.pdf (Worksheet 1)
https://s3.ap-south-1.amazonaws.com/prod.evidyaloka.org/couse_documents/worksheet/DSERT/Science/T+4317_ST+5037_V1.pdf (Worksheet 2)
https://s3.ap-south-1.amazonaws.com/prod.evidyaloka.org/couse_documents/worksheet/DSERT/Science/T+4317_ST+5038_V1.pdf (Worksheet 3)
https://s3.ap-south-1.amazonaws.com/prod.evidyaloka.org/couse_documents/worksheet/DSERT/Science/T+4317_ST+5039_V1.pdf (Worksheet 4)
https://s3.ap-south-1.amazonaws.com/prod.evidyaloka.org/couse_documents/worksheet/DSERT/Science/T+4317_ST+5040_V1.pdf (Worksheet 5)
Answerkeys [Version 2021]
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