| A | B |
|---|
| technology | the use of scientific knowledge for a practical purpose |
| manufacturing | the production of goods on a large scale |
| assembly line | a development of manufacturing where a product moves through a factory while workers add parts to it |
| thermostat | technology used to maintain or change the temperature of our homes (and businesses) |
| new concepts in home design | 1- mobile homes 2- amazing towers |
| food storage - before refrigerators | ice slabs from frozen lakes/ponds kept in icehouses that were insulated by layers of straw |
| food storage - after refrigerators | technology advanced cold food storage that holds food longer and is healthier (because it doesn't go bad so fast) |
| plastic technology | technology advanced food storage that is inexpensive and airtight; is healthier because it prevents spoilage |
| barometer | weather instrument that measures air pressure |
| hygrometer | weather instrument that measures moisture in air |
| rain gauge | weather instrument used to measure rainfall |
| anemometer | weather instrument used to measure wind speed |
| radar | weather instrument used to measure wind speed and precipitation in a storm |
| Thomas Edison - inventions | two of them are: 1- phonograph and 2- motion picture camera |
| Inventor of the Lightbulb | Sir Joseph Swan of England |
| George Washington Carver - invention | invented the process of crop rotation |
| inventor | someone who uses technology to develop a new device or process, to solve a problem, or to change how people do things |
| horse hair | sometimes found in hygrometers |
| cause of wind | differences in temperature and air pressure |
| 3 MAIN technology uses | 1- solve problems AND 2- develop a new process or device AND 3- change how people do things |
| humidity | the moisture in the air; measured by hygrometers |
| crop rotation | the process where farmers rotate the crops they plant each season in order to preserve the soil's fertility |
| high pressure system - weather | usually clear and sunny skies |
| low pressure system - weather | usually rainy |
| shape of weather forecaster's rain gauges | wider at the top to catch tiny amounts of rainfall |
| today's assembly lines often have these | robots and machines |
| why early car prices were so high | because they were hand built one at a time by one group of workers |
| early car production: fast or slow? | slow |
| current car production: fast or slow? | fast - thanks to assembly lines |
| how microwaves have made life easier | cook food faster |
| how cell phones have made life more convenient | communication is easier |
 | warm front |
 | cold front |
 | stationary front |
| 3 common results of technology | 1- machines AND 2- gadgets AND 3- inventions |
| the symbol for a high pressure system | H |
| the symbol for a low pressure system | L |
| how weather radar works (3 basic steps) | 1- radar station sends out signals AND 2- the energy bounces off objects like raindrops AND 3- the DIFFERENCE in the returning energy tells speed snd direction of storm elements |
| The more __________ weather forecasters the more accurate their _____________ will be. | The more INFORMATION weather forecasters have the more accurate their PREDICTIONS will be. |
| 2 positive effects of technology | 1- do things faster AND 2- do things EASIER |
| 3 negative effects of technology | 1- increased personal isolation (cyberspace) AND 2- increased pollution AND 3- people lose jobs to machines/robots |
| Name types of technology for entertainment. | 1- radios AND 2- T.V. AND 3- Video games AND 4- CDs and CD players AND 5- DVDs |
| 2 reasons to use machines instead of people in assembly lines | 1- it's cheaper 2- it's more mistake-proof |
| Henry Ford | inventor of the assembly line |
| Can technology change entire societies? | Yes |
