1) Solar Panels used to generate…………….. energy. a) solar b) electric c) kinetic 2) The wind movement has……….. energy which move the wind blades a) Solar b) Kinetic c) Potential 3) Solar water heater change………. Energy to ………. Energy a) Solar –heat b) Heat- solar c) solar -electric 4) Greenhouses allow farmers to crop the plant that Only grow in….. a) Warm climate b) cold climate c) absence of sunlight 5) The change of energy in a……….. Opposite to the wind turbine. a) Electric fan b) electric iron. c) electric heater 6) The water flows through turbines in hydroelectric dams to generate……. Energy a) Electrical b) potential. c) solar 7) The reason for flowing water downhill river is……….. force a) Friction b) gravitational. c) electrical 8) Both waterfalls and…………..are renewable source of energy a) Wind b) Coal c) oil d) fossil fuels 9) The forms of energy resulting from waterfalls is called………energy a) Hydroelectric b) kinetic c) Chemical 10) River water evaporates by the help of heat produced from a) kettles b) sun c) electric heaters 11) Sand is formed due to the break of……….. a) glass b) rock c) wood. d) plastic 12) The formation of the canyon takes ….. a) Few hours. b) few minutes. c) many years 13) Rusting of a statues is an example of………. a) Weathering. b) erosion. c) deposition 14) All the following are chemical weathering except……. a) oxygen. b) acid rain c) clouds d) water 15) The dropping of sediments to a new place is considered……… a) Erosion. b) deposition c) weathering 16) Lichens produce ……on rocks that dissolve minerals in these rocks. a) Oxygen b) acid c) water. d) rain 17) When a piece of coal is burned……..is produced a) Chemical. b) kinetic. c) potential. d) heat 18) The……….…energy doesn’t help the blender to do his job a) sound b) electric c) kinetic 19) The input energy while playing drums………energy a) Kinetic b) sound. c) heat 20) The …………is the main source of energy on earth a) The sun b) earth c) coal. 21) All the following are renewable energy except…………… a) Water b) Coal c) wind d) sun 22) Exteme heat and pressure under the earth surface lead to…….….. formation. a) Biofuel b) fossil fuel. c) wind d) air 23) inside the electric power station burning of………. Produce steam a) fuel b) water c) Generator 24) Smog cause irritation to ……………of human a) heart and lungs b) stomach and lungs 25) We must ......the fossil fuel first to obtain energy a) wash. b) cook. c) burn. 26) In water cycle water………..then……before it falling in form of rains a) Evaporates then condenses. b) freeze then evaporates 27) The breaking down of rocks is called………….. a) Erosion b) weathering. c) deposition 28) The canyon can be formed by the effect of…………. a) Water b) wind. c) water and wind d) water and sun

Science Prim.4 Second Term

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