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)