musical instruments
sound
light
white light
kinds of objects
100
a violin
What is a string instrument
100
transmits sound over distances
What is the telephone
100
straight lines and a very high speed
What is light propagation
100
red and blue makes
What is purple
100
blocks the light
What is opaque object
200
a rainmaker or drums
What is percussion instrument
200
it is also call sound reflection
What is an echo
200
you turn on a laser ray in front of two mirror and a laser ray
What is bouncing light
200
a mixture of seven colors
What is white light
200
produce their own light
What is natural luminous objects
300
a flute
What is a wind instrument
300
an object blocks the light and it produces
What is a shadow
300
passes through raindrops and separates into seven colors
What is rainbow
300
let some light pass through them
What is translucent objects
400
is produced with vibration
What is sound
400
kind of tone in sound
What is high and low
400
part of the eye that let light enter through it
what is the pupil
400
blue, red, and yellow
What is primary color
400
candles, bulbs and flashlight
What is man made luminous or artificial luminous objects
500
percussion, wind and string instruments playing at the same time.
What is an orchestra
500
Stress, insomnia, deafness, and headaches
What is effects of noise pollution
500
the main source of light
What is the sun
500
object that changes the white light into its seven colors
What is a prism
500
tubes that produce a very white light
What is fluorescent lights
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