Sound & Vibration
Examples: playing a musical instrument, your voice, banging on a table
What does transparent mean?
See through
What is one way to send a message with light?
Flashing, turning a light on and off
How does a musical instrument make sound?
When a part of the instrument vibrates, it makes sound.
What does transluscent mean?
Kind of see through
How do boats find their way in the fog?
Following light from lighthouse, listening for sounds on the water
Slinky, glass, door stopper, bouncy balls, hands clapping
What does opaque mean?
Not see through
How does light and sound help keep cars safe on the road?
Traffic lights help you know when to stop, sound can let you know when a train or an ambulance is coming
Give an example of loud sounds.
A horn, yelling, thunder
Give an example of an opaque object.
Examples: A rock, a book, a fork
Can you see in a cave without a flashlight? Why or why not?
You cannot see in a cave without light because there is nowhere for light to get into a cave without a flashlight.
Whispering, a mouse's squeak, light rain
Give an example of a transparent object.
Glass, glasses, plastic box