Harmful Noises
The type of waves that allow marine animals to hear sounds in the ocean.
What are sound waves?
This happens to your vocal cords in order to produce sound.
What is vibrate?
Fill in the blank: The greater the force, the greater the ________.
What is volume?
Explain why you heard the knock louder when your ear was on the desk.
What is molecules that are closer together produce a louder sound?
Echolocation is used by whales to _______, _______ and ________.
What is find their way, locate food and find their young?
In the video of the Navy testing, in which direction are the whales moving?
What is towards the shore?
Name three body parts that help produce sound.
What are the lungs, diaphragm, vocal cords or windpipe?
The direction in which sound travels.
What is in all directions?
The tool used to measure the volume of sound.
What is a decibel reader?
The reason whales sing.
What is to attract a mate?
What is happening to the whales in the water close to the sounds the Navy ship makes?
What is their hearing is being damaged?
What is the FIRST step in how we hear sound?
What is the outer ear gathers sound?
The state of matter in which sound travels fastest.
What is solids?
When you move away from the source of a sound the volume _______.
What is decreases?
Three types of sounds that whales make.
What are clicks, pulses, whistles, groans, cries, trills?
The type of testing that the Navy is doing.
What is SONAR?
The lining on the inside of the cochlea that changes vibrations into signals.
What are tiny hairs?
Draw wavelengths with high pitch.
Show drawing.
A system that sends messages through electrical waves.
What is Morse Code?
Two behaviors of whales being affected by noises made by humans.
What is avoiding mating and feeding areas?
What did we study (look at) to get information about different types of marine animals being affected by the Navy SONAR testing and training?
What is an infographic?
What is the LAST step in how we hear sound?
What is the cochlea turns the vibrations into signals which nerves carry to the brain?
Slow vibrations produce waves that are _____ apart and ____ frequency.
What is far apart and low frequency?
A _______ system produces sound.
What is closed?
Name three noises that humans are making in the ocean that are harming the whales.
What is boating, military SONAR, underwater construction, sysmic surveys for oil?