Datos asombrosos acerca del sonido: The Amazing Facts About Sound
Silverman
2012 оны 3-р сар · Carson-Dellosa Publishing
Электрон ном
24
Хуудас
family_home
Боломжит
info
Үнэгүй жишээ
Энэ электрон номын тухай
This Title Introduces Students To The Basic Concept Of Sounds. How Sounds Can Be Heard But Not Seen. How Sound Is A Form Of Energy That Is Transmitted Through Sound Waves Which Travel Through Your Eardrum To Be Heard. How Sound Travels Through Air And At What Rate Of Speed. Useful Examples Are Given Throughout To Help Students Understand The Concept.