This document discusses microorganisms and how they are living things that can only be seen under a microscope. It provides examples of different types of microorganisms like bacteria, fungi, viruses, and protozoa. It describes how yeast is a type of fungus that is used in bread making to make the dough rise. Experiments are described that show how microorganisms like fungi can grow and move, and how diseases caused by microorganisms can spread from person to person through various means like food, sneezing, direct contact, or carriers like mosquitoes. Prevention methods like hand washing and quarantining sick individuals are also outlined.

1. Theme : Investigating Living Things
Unit 1 : Microorganisms

2. Definition:
 Microorganisms is an organisms that can only
seen through a microscope.

4. Virus Protozoa

5. bacteria fungi

6.  Microorganisms are living things.
 They undergo life process such as breathe ,
grow and move.

7.  Yeast is a fungus. It used in making bread.
 It is able rise after we mix it with flour and
water and let the flour rest a while.
 We can see the size of dough getting bigger.
The effect of yeast on the dough shows that
yeast breathes.

8. Flour + Dough rises
water (yeast
+yeast breathe)

9.  When water is sprinkled on a slice of bread
and kept in a plastic bag for a week.
 We can see black spot on the bread.
 The black spot are fungi
 This activity show that microorganisms
grows.

10. Fungus

11.  Microorganisms moves.
 We can see the movement of microorganisms
through a microscope.

12. Amoeba move to top

13. Making bread
Making tapai
Making tempe
Making fertilizer

14. Illness
Food poisoning
Food turns bad
Tooth decay

15. Diseases caused by
microorganisms :
a. Stomach upset f. conjunctivitis
b. Tooth decay g. scabies
c. measels h. AIDS
d. flu i. mumps
e. cough

16.  Diseasescaused by microorganisms
can spread from one person to
another.
 Example of diseases that can
spread:
cough, flu, measles, chicken pox

17. 1. Through food and drink
2. Sneezing or coughing
3. Direct contact
4. Carried by mosquitoes or flies
5. Spread through the air

18. a. Washing hands before handling food
b. Covering the mouth and nose when
coughing or sneezing
c. Washing hands after using the toilets
d. By putting patients who have chicken
pox, conjunctivities or mump in
quarantine.
e. By covering wounds

19. By :
LEE CHOUI YEE
UPSI ELA12
(A121PJJ)