1) what is sound a) a form oof energy we can hear b) for cooking and etc c) for drinking 2) how many sources of electricity are there? a) 8 b) 9 c) 10 3) a ________ can change amount of number bc it can move between other________s a) electron and electron b) atom electron c) circuit and atom 4) it is a water form than can make electrcity a) lake b) river c) sea d) ocean e) water fall 5) a _________ is used to measure sound waves a) Vibration b) movement c) event d) frequency 6) what is an example of noise a) piano playing b) lullabuy c) children screaming 7) what is pleasant to an ear? a) dog barking b) ambulance c) police car d) lullabuy 8) what needs electricity to be able to use it? a) candle b) bag c) light bulb d) tv e) both tv and light bulb 9) it was once a volcano a) lake b) river c) pond d) sea e) ocean

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