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tech_unit_2_vocabulary [2018/01/07 21:47]
john created
tech_unit_2_vocabulary [2018/01/07 21:48] (current)
john
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   - **technology:​** makes use of human knowledge to convert resources into the goods and services that people need and want   - **technology:​** makes use of human knowledge to convert resources into the goods and services that people need and want
   - **trade-off:​** giving up one option in order to gain a better or more realistic option   - **trade-off:​** giving up one option in order to gain a better or more realistic option
 +
 +===== Chapter 2 =====
 +
 +  - **Agricultural Era:** the period of human history where most tools and discoveries were focused on growing and harvesting crops
 +  - **alloy:** a mixture of two or more metals
 +  - **aqueduct:​** a channel built to carry water
 +  - **Bronze Age:** the era when bronze came into common use for weapons and tools
 +  - **ethical dilemma:** a difficult decision that a person has to make about whether something is right or wrong
 +  - **exponential rate of change:** when something changes at an increasing rate over time
 +  - **factory system:** people made goods with machines instead of by hand
 +  - **hybrid electric vehicle:** combines the engine of a conventional vehicle with the battery and electric motor of an electric vehicle
 +  - **Industrial Revolution:​** the period of human history from the late 1700s until the mid-1900s where human and animal labor was replaced by machines
 +  - **Information Age:** the period of human history beginning in 1947, continuing to the present, and marked by extremely rapid change
 +  - **Iron Age:** the era when iron came into common use for weapons and tools
 +  - **linear rate of change:** when something changes at the same rate over time
 +  - **smelting:​** ore is melted to remove impurities
 +  - **Stone Age:** the era when stone was used for weapons and tools
tech_unit_2_vocabulary.txt ยท Last modified: 2018/01/07 21:48 by john