Is Pluto a planet?

Peka Sains Year 6

Date	:	15-4-2012
Activity Code	:	6 / 3 / 1.2 / 2
Theme	:	Investigating Materials
Topic	:	1 Food Preservation
Learning Outcomes	:	1.2 Sythesizing the concept of food       preservation
Aim	:	To collect and display examples of food using drying method
Method	:	1. Work in groups to collect      5 dried food specimens. 2. Put each type of specimens      in separate transparent      plastic sachet. 3. Seal each sachet. 4. Paste and label the samples     on the manila card. 5. Present and display the     chart to the class.
Observation	:
1. List the specimens that you have collected. Dried Food 1. Dried Chilies 2. Dried Banana 3. Dried Mango 4. Fish Crackers 5. Squid
Discussion	:
1. What is the condition of the specimens?     Dry, water-free, light . 2. What will happen if the specimens are not dried?     The food will turn bad. 3. Give reason why the dried food will not turns bad?     Microorganism cannot grow in     a water-free environment. 4. What is the conditions for microorganisms to grow?     Microorganisms need air, suitable acidity and      temperature to grow. Conclusion   :    Microorganisms cannot grow in a                          water-free environment therefore                         drying can preserve the food and                         make the food last longer.