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

Imprimare
Încorporează

Clasament

Stilul vizual

Opţiuni

Comutare șablon

Restaurare activitate salvată automat: ?