CORE 2 FIRST TIMERS SO: DD-4 (F-J)

When sperm whales beam their echolocating sounds downward, they can detect giant abalone below them.

The Titanic sank all the way to the ocean bottom–over two miles deep!

If you hear a huge pipe organ play and the notes move lower and lower until you can no longer hear them, you will eventually feel the vibration of unheard notes. These sounds are called ultrasound.

A man’s vocal cords are about 2/3 inch long and about as wide as a hot dog.

The vocal cords which make the human voice are alive! If our vocal cords weren’t alive and they were damaged in situations when we scream too much like at football games or at camp, they would be permanently damaged.

The white strips in the picture above are vocal hyoids.