74
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Changes
From Karnataka Open Educational Resources
→Activity No 1
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*Website interactives/ links/ simulations
*Website interactives/ links/ simulations
−*Process/ Developmental Questions<br>
+*'''Process/ Developmental Questions'''<br>
Procedure:Add lemon juice to a cup of milk . See the changes. Milk changes into curds.<br> How did this change take place? (Lactococcus lactis is a microbe classified informally as a Lactic Acid Bacterium <br>because it ferments milk sugar (lactose) to lactic acid.)[[File:lactus bacteria.jpg|100px|left]][[File:Curds.jpg|100px|left]]
Procedure:Add lemon juice to a cup of milk . See the changes. Milk changes into curds.<br> How did this change take place? (Lactococcus lactis is a microbe classified informally as a Lactic Acid Bacterium <br>because it ferments milk sugar (lactose) to lactic acid.)[[File:lactus bacteria.jpg|100px|left]][[File:Curds.jpg|100px|left]]
−*Evaluation<br>
+*'''Evaluation'''<br>
Evaluation: What changes do you find when lemon juice is added to milk? Is there change in the taste? Why did this change take place?<br>
Evaluation: What changes do you find when lemon juice is added to milk? Is there change in the taste? Why did this change take place?<br>
−*Question Corner<br>'''Activities to students for evaluation (CCE)'''
+*'''Question Corner'''<br>'''Activities to students for evaluation (CCE)'''<br>
+1. Browse the web and prepare the presentation on habitat and types of bacteria.<br>
+2. Draw the different shapes of bacteria on drawing sheet , name them and display in class room.<br>
+3. Why does the milk get spoilt during summer? Does it get spoilt if we boil milk? If not, why?<br>
+4. Similarly which food items get spoilt soon? Why?
= Project Ideas =
= Project Ideas =
