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

Science

Cetak
Menyematkan

Papan Peringkat

Gaya visual

Pilihan

Berganti templat

Pulihkan simpan otomatis: ?