Page 11 Learning Task 2: Study the picture of a family having their dinner. Identify at least 3 porous and 5 non-porous materials. Write your answer in the chart given below. Porous Materials Non-Porous Materials
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From the pictures of a family having their dinner. The 3 porous and 5 non-porous materials are:
Porous Materials
1. Food/ Rice
2. Wood Table
3. Fish
Non-Porous Materials
1. Plastic container
2. Glass
3. Spoon
4. Bottle
5. Fork
Further explanation:
Content Criteria:
Learners demonstrate an understanding of grouping different materials based on their characteristics.
Performance Criteria:
Learners should be able to recognize and practice proper product handling.
Ability to Learn:
Learners should be able to classify materials based on their ability to absorb, float, sink, and decompose water.
Purpose:
A major difference between porous and non-porous surfaces is their ability to retain water, air, or other liquids.
Porous materials are small holes through which air or liquid can pass, finished. It doesn't have to be a non-porous material. Do not puncture and allow air or liquids to pass through, finished. Float means to float on water. The sink is the ability to dive underwater. Disintegration and decomposition due to the action of bacteria. Glasses, metals, plastics, and painted wood are an example of non-porous materials, while untreated wood, curtains, carpets, and cardboard are porous.
Why is it important to know if a material is porous or non-porous?
Non-porous materials hold up well to cleaning, but non-porous items tend to retain bacteria and dirt longer, and cleaning is required.
Benefits of Porous Materials
Porous material performance must meet the expected standards of the material application. Common uses for these materials are sound absorption, thermal insulation, and electrical applications.
Porous materials offer excellent resilience, and high physical strength and, due to their lightweight, provide parts that are strong and can be processed efficiently. These materials can achieve filtration efficiencies of up to 99.8%.
Porous carbon materials are in high demand due to their excellent physical and chemical properties such as thermal conductivity, electrical conductivity, low density, chemical stability and their wide availability. Porous materials can be used in energy-saving and energy conversion modules due to their unique properties. These properties can improve material efficiency in terms of power and energy density, stability, and lifetime.
Learn more about the matter here: brainly.ph/question/18676935
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