Study Guide. Raw Materials and Materials

4.1. Raw materials and materials

Definitions:

Raw material:

  1. The basic natural material we use to manufacture other products.
  2. Unprocessed substances in their natural state.
  3. Raw materials are substances that are extracted directly from natural objects.

Material:

  1. A processed raw material that is ready for making any type of product.
  2. Substance that has been prepared for making different types of products.

Manufactured goods:

Products created by humans to satisfy our needs and improve our standard of living.

A manufactured good is any object created by humans to satisfy their needs and improve their standard of living.

Physical process: is when a substance changes its state. The chemical composition of the material does not change.

Chemical process: is when a substance is transformed into a different substance with different characteristics. The composition of the material changes.

 

Raw materials can be classified into three main categories:

1. Animal origin

2. Vegetable origin

3. Mineral origin

Raw materials are transformed by physical and chemical processes into the various types of materials that are used for manufacturing. They are prepared so that they are ready to use for making many different manufactured good.

The manufacturing process:

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1. We get raw materials form nature. 2. We process them to make materials. 3. We make goods with these materials.

 

 

Vocabulary

Section

Nouns

Verbs

Adjectives

Raw materials and materials

Animal,
cellulose, coal, chestnut, clay, component, composition, copper, cork,
cotton, derivative, desk, earthenware, fastener, floor, furniture, gas,
glass, goods, hair, hide, iron, linen, log, machine, marble, material, metal,
mineral, nature, need, oil, ore, paper, petroleum, pine, plank, plaster,
plastic, platform, porcelain, process, quarry, rock, sand, sheep, silk,
source, standard of living, state, steel, stone, thread, tin, tree truck,
wood, wooden board, wool, vegetable.

Come from,
contain, create, cut, extract, form, improve, make, melt, process, satisfy,
transform, use.

Chemical,
decorative, main, manufactured, physical, structural, synthetic

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