a a cone-shaped hill or mountain around this opening, built up of the material that is forced out
b a shaking or sliding of the ground. It is caused by the sudden movement of masses of rock along a fault or by changes in the size and shape of masses of rock far beneath the earth’s surface.
c the science or art of metals. It includes the study of their properties and structure, the separation and refining of metals from their ores, the production of alloys, and the shaping and treatment of metals by heat and rolling.
d the heaviest, thickest form of petroleum
e a white substance found in the earth and in seawater; sodium chloride; table salt. Salt is used to season and preserve food and in many industrial processes
5 Multiple Choice Questions
ny on of several substances made from various minerals, wood ashes, blast furnace dust, or the like, and used in making soap, fertilizers, and glass.
Rock changed in structure by heat, moisture, and pressure
On 13 Feb 1947, the Leduc No 1 well, in Alberta, successfully tapped the huge Leduc oil field. By the end of 1947, some 30 wells in the field were producing 3500 barrels of oil a day
a white, radioactive metallic chemical element that weighs more than any other element in nature.
produced by fire, great heat, or the action of a volcano; solidified from a molten state. Igneous rock is formed by the cooling and solidification of magma.
5 True/False Question
petrochemical → an oily, dark-colored, flammable liquid found in the earth, consisting mainly of a mixture of various hydrocarbons
iron ore → a white, radioactive metallic chemical element that weighs more than any other element in nature.
nickel → a solid, hard black substance that burns and gives off heat. Coal is composed mostly of carbon. It is formed from partly decayed vegetable matter under great pressure and heat in the earth
sedimentary rock → rocks fromed from sediment derived not only from rock fragments but also from plant and animal remains
petroleum → an oily, dark-colored, flammable liquid found in the earth, consisting mainly of a mixture of various hydrocarbons