Childrens part will come soon.

1. Chapter-2
Microorganisms:FriendandFoe
Class-8
Part-1
Made by:- SHANVI SHAKYA
CLASS- 8TH

2. Whatismicroorganisms?
Thelivingorganismswhichcannotbeseenwith
thenakedeyeandcanonlybeobservedthrough
amicroscopearecalledmicroorganismsor
microbes.

3. TYPESOFMICROORGANISMS

4.  Therearelargenumberoflivingorganismsaroundus.
 Wecanseemostofthelivingorganismswiththenaked
eye.
 Theycanbeobservedonlywiththehelpofmicroscope.

5. INTRODUCTION
 Microorganismsmaybeunicellular(single-celled)or
multicellular(manycelled).
 Thefirstscientisttodescribemicroorganismswasa
DutchscientistAntonieVanLeeuwenhoek.
 In1674,heobservedlivingcellsforthefirsttimewith
thehelpofhismicroscope

6.  Thefirstscientistto
describe
microorganismswasa
DutchscientistAntonie
VanLeeuwenhoek.

7. INTRODUCTION
 Thesciencewhichdealswiththestudyof
microorganismsiscalledmicrobiology.
 Thescientistwhostudymicroorganismsarecalled
microbiologist.

8. Wheredo Microorganisms live?
 Microorganismsarepresenteverywhere.
 Somelivealonewhileothersgrowinthegroupscalled
colonies.
 Theyarefoundineverykindofenvironment.
 Theyarefoundinair,soilandinwaterbodieslikeseas,
lakesandponds.
 Theyarealsofoundindeadanddecayingorganismsand
eveninside ourbodies.

9. THANK YOU PART 2
VERY SOON……
(29-03-23)