Material Processing & Non-Metallic Materials for Students
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13 cards
Question: What is processing in the context of materials?
Answer: Processing is taking a raw material and changing it into something more useful.
Question: Name five general methods of processing materials.
Answer: Mixing; Mixing and Setting; Mixing and Cooking; Mixing and Cooling; Drying and Firing.
Question: What does the 'Mixing' processing method involve?
Answer: Putting two things together (example: flour and water to make glue).
Question: What happens in 'Mixing and Setting' processing and give an example.
Answer: Mixing things that start as a liquid/paste and then harden into a solid (example: concrete or Plaster of Paris used for broken bones).
Question: Describe 'Mixing and Cooking' processing with an everyday example.
Answer: Using heat to permanently change the properties of a mixture (example: baking bread from dough).
Question: What is 'Mixing and Cooling' processing and an example?
Answer: A hot liquid mixture that becomes a wobbly solid as it cools (example: making jelly).
Question: What does 'Drying and Firing' processing involve and what products use it?
Answer: Shaping wet clay, drying it, then firing it in a very hot kiln to become rock hard (used to make bricks and ceramics).
Question: List the raw materials and the basic steps in the bread process.
Answer: Raw materials: flour, water, yeast. Steps: mix into dough, then bake in an oven (heat) to make bread.
Question: What are the final characteristics of bread after processing?
Answer: A solid, spongy product with a different texture and color than the raw ingredients.
Question: What are some sources of fabrics mentioned and one property of each source?
Answer: Plants (cotton — light and strong); animals (wool — doesn't burn easily); or from plastic.