Local Grade 9 Chapter 1
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Transcript of Local Grade 9 Chapter 1
Scientific investigation of the environment
Scientific investigation of the environment9
Scientific investigation of the environmentSCIENCE Grade 9Vikum Harshana cademia
Importance of micro-organisms
. . ..Applications of microbial activity
Compost Production
... . ... . . . . .Coir industry
....Production of dairy products
Curd .. .. .. .. .. .. .. .. ..
Yoghurt .. .. .. .. .. .. .. .. .. ..
Cheese .. .. .. .. .. .. .. .. Vinegar production
.. .. ..
. .. .
Immunization vaccines
. .1. .2. .3. .4. .Antibiotics
.. .. . . ..Harmful effects of micro-organisms
Infections
..
Bacteria .. .. .. ... ... .. ..
Viruses .. .. .. Fungi .. .. .. Unicellular organisms .. .. Spread of causative agents
.. . . . . .. . . .
.. . .
.. . . .
.. .. .. .. ..
Food spoilage
.. .1. ..2. ..3. .. .... .. .. .. .. ........ . ........
Using laboratory equipment appropriately
.Volumetric equipment
...
Measuring Cylinder
.... .... .... ....
Beaker ..
..
Pipettes .. .... .... ....
Burettes .... .. ..
..
Flasks ..
Instruments to measure mass / weight
Triple beam balance ....
Chemical balance .... ....
Spring balance .... ..
Other laboratory equipment
Boiling tubes .. .. ..
Test tubes .. .. ..
Ignition tubes .. ..
Test tube holder .. ..
Funnel ....
Thistle funnel .. ..
Watch glasses .. ....
Petri dish .. ..
Slide ....
Troughs ..
..
Density bottle .... ..
Bunsen burner .... ....
Spirit Lamp .. .. .. ..
Tripod .. .... ..
..
Mortar and pestle .... ..
Wash bottle .... ..
Instruments to measure quantities related to electricity
Ammeter .. .. .... Voltmeter .. .. Ohmmeter .. .. Multimeters .... .. .. ........
Vikum HarshanaAcademia Science(Grade 9)