U L These are the most important words you have met in this module. O D UNIT 1 bellows blast furnace blacksmith cast iron coal coke fabric flying shuttle forge iron ironmaster life expectancy mechanization metalworker raw material smelting spinning jenny steam engine steel thread tool wrought UNIT 2 biomass dam fossil fuel generator geothermal energy heat hydroelectric power plant nuclear power plant pipe pollution solar cells solar energy steam thermoelectric power plant tidal energy turbine wind energy M 1 E REVISION AND PRACTICE VOCABULARY Now complete the sentences below with some of the above terms. a. In time ironmasters learned to transform useless ......................... into wrought iron. b. Skills related to extracting metal ores from the Earth began to evolve, and ......................... became important members of society. c. Huntsman used a ......................... to melt wrought iron. d. The spinning jenny enabled workers to spin several ......................... at the same time. e. ......................... allowed people to do things faster and in larger quantities. f. A person who makes and repairs iron tools is a ......................... . g. Extremely hot air is blown in a ......................... . h. You can exploit ......................... ......................... by means of panels placed on the roof of a house. i. If you boil water, ......................... is produced. j. ......................... are produced by the gradual degrading of organic substances. k. John Kay invented the ......................... to make cotton goods. l. Britain was rich in natural resources such as ......................... and iron. m. Mechanization was possible thanks to Watt s ......................... . n. Children s ......................... increased. o. ......................... were displayed during the Great Exhibition . Fill in the blanks with the correct words given in the box in scrambled order. biomass dam geothermal energy solar cells tidal energy turbines a. ................................. convert sunlight directly into electricity. b. One of the barriers to the use of ................................. is the cost of building tidal generating stations. c. Wind ................................. convert the kinetic energy of the wind into mechanical power. d. ................................. is organic material which has stored sunlight in the form of chemical energy. e. The most common type of hydropower plant uses a ................................. on a river to store water in a reservoir. f. Direct use of ................................. dates back thousands of years. 32