Preservation & Impact of technology

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8 Terms

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Resistors

Components that control current in electric circuits to prevent damage from high current by converting electrical energy into heat.

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Food Preservation

Methods to make food safer, improve quality, and extend freshness, including cooking, freezing, pickling, drying, and pasteurization.

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Microorganisms

Bacteria and mold that cause food to spoil.

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Grain Conservation

Storing staple foods in silos or at home, dried to prevent rotting, and protected from pests.

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Pickling

Preservation method where food is stored in brine to prevent microbial growth.

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Curing and Drying

Preservation method using salt to prevent spoilage, examples include Biltong and Dipabi.

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Metal Preservation Methods

Techniques to protect metals from rust, including painting, galvanizing, and electroplating.

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Plastics

Versatile materials split into thermoplastics (recyclable) and thermosetting plastics (not recyclable); their pollution can be mitigated by reducing, reusing, and recycling.