Difference between revisions of "Health and diseases microorganisms microorganisms activity 3"
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__FORCETOC__ | __FORCETOC__ | ||
| − | =Activity No # 1 - ''' | + | =Activity No # 1 - '''Curd experiment'''= |
==Estimated Time== | ==Estimated Time== | ||
| − | + | 20 minutes. | |
| + | Observing micro-organisms in a curd. | ||
==Materials/ Resources needed== | ==Materials/ Resources needed== | ||
| + | #Curd,# microscope#,glass slides#,needle | ||
==Prerequisites/Instructions, if any== | ==Prerequisites/Instructions, if any== | ||
| + | Ask the child to take a cup of milk,heat,cool and add little butter milk at night and bring the product to the school in the next day | ||
==Multimedia resources== | ==Multimedia resources== | ||
==Website interactives/ links/ simulations== | ==Website interactives/ links/ simulations== | ||
==Process (How to do the activity)== | ==Process (How to do the activity)== | ||
| + | Take the sample what a child bring,put it on the slide , keep it under the microscope, focus and ask the student to observe the sample through microscope. | ||
==Developmental Questions (What discussion questions)== | ==Developmental Questions (What discussion questions)== | ||
| + | #Why milk become curd when we add little butter milk to a glass of milk? | ||
| + | Ans. A microorganism called lactose bascillus present in the buttermilk converts milk to curd. | ||
| + | #Why cant it become milk when we add little bit milk to glass of buttermilk? | ||
| + | Ans.Lactos bascillus convert milk into curd but not curd into milk. | ||
| + | |||
==Evaluation (Questions for assessment of the child)== | ==Evaluation (Questions for assessment of the child)== | ||
| + | #Which is the microorganism present in the milk? | ||
| + | #What is the reaction is going in the process-milk become curd? | ||
==Question Corner== | ==Question Corner== | ||
'''To link back to the topic page''' | '''To link back to the topic page''' | ||
| − | [http://karnatakaeducation.org.in/KOER/en/index.php/ | + | [http://karnatakaeducation.org.in/KOER/en/index.php/Health and diseases microorganisms''' Back] |
Latest revision as of 10:41, 26 August 2014
Activity No # 1 - Curd experiment
Estimated Time
20 minutes. Observing micro-organisms in a curd.
Materials/ Resources needed
- Curd,# microscope#,glass slides#,needle
Prerequisites/Instructions, if any
Ask the child to take a cup of milk,heat,cool and add little butter milk at night and bring the product to the school in the next day
Multimedia resources
Website interactives/ links/ simulations
Process (How to do the activity)
Take the sample what a child bring,put it on the slide , keep it under the microscope, focus and ask the student to observe the sample through microscope.
Developmental Questions (What discussion questions)
- Why milk become curd when we add little butter milk to a glass of milk?
Ans. A microorganism called lactose bascillus present in the buttermilk converts milk to curd.
- Why cant it become milk when we add little bit milk to glass of buttermilk?
Ans.Lactos bascillus convert milk into curd but not curd into milk.
Evaluation (Questions for assessment of the child)
- Which is the microorganism present in the milk?
- What is the reaction is going in the process-milk become curd?
Question Corner
To link back to the topic page and diseases microorganisms Back