1) The earth revolves around the sun once every a) year b) month 2) we called the movement of earth around the sun : a) rotation b) revolution 3) The position of the earth facing the sun has : a) daylight b) night 4) The position of the earth facing away the sun has: a) night b) light 5) Examples of artifical sound : a) dog sound b) musical instruments 6) part of ear has three tiny bones : a) middle ear b) outer ear 7) sounds come into our : a) inner ear b) outer ear 8) its protect the middle and inner ear: a) eardrum b) inner ear 9) Sounds can travel through solid faster than liquid ? a) No b) Yes 10) The movement of sounds called: a) Vibration b) natural sounds 11) sounds cant travel through gas material ? a) Yes b) No 12) inner ear is a tiny tube filled with liquid and hair : a) inner ear b) middle ear 13) Example of natural sounds: a) boy shouting b) teacher voice c) A&b 14) "It results from the Earth's rotation around the Sun." a) four seasons b) day and night

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