1) sound cannot travel through a) space b) forests c) oceans d) houses e) liquids f) caves 2) sound travels better through a) gasses b) liquids c) solids 3) sounds travels at different speeds through different materials a) true b) false 4) sound waves travels at the same speeds a) true b) false 5) sound waves travels through walls and doors a) true b) false

Papan Peringkat

Gaya visual

Pilihan

Berganti templat

Pulihkan simpan otomatis: ?