Professor Pumpernickel’s Laboratory – Sound!
Sound: What is it, and what does it look like? That's right - what does it LOOK like! Professor Pumpernickel can show you, and has some really cool stuff to try out at home too!
Sound: What is it, and what does it look like? That's right - what does it LOOK like! Professor Pumpernickel can show you, and has some really cool stuff to try out at home too!
