1) Solids a) hardly move at all b) move quite a lot c) move a lot 2) liquids a) hardly move at all b) move quite a lot c) move a lot 3) gases a) hardly move at all b) move quite a lot c) move a lot 4) True or False: sound sometimes comes from a source. a) True b) False 5) You hear your friend whispering to you. This shows that sound travels through the air. a) True b) False

Tauler de classificació

Estil visual

Opcions

Canvia de fonament

Restaurar desada automàtica: ?