How It Works: Sound Health + Wellness and jumbo jets soaring into

and jumbo jets soaring into the skies

Super absorbent materials: Prevent leakage and maintain dryness Soft: More comfortable for you Double adhesive tape: Keeps pads in place Excellent absorbency and leak protection - day or night Discreet under clothing Comfortable Keeps you dry

a family of black and white flocked Panda bears with round ears

Ruby shines

4 recycled plastic bottles to make the Light-Up Cubes included in this set

How It Works: Sound Health + Wellness and jumbo jets soaring intoSssh, listen what can you hear? From musical harmonies to sonic booms, discover the science of sound and how we hear things. Why is most of space completely silent? Why does a recording of your voice sound strange? And what do bats, dolphins and a boat full of scientists have in common? The answers are all in this book, with lots of flaps to lift and simple experiments to do at home.