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Sound is a form of energy produced by ….
vibration
When people speak their … vibrate. (in our throat)
vocal chord
Give an example of a man-made sound!
confirmed by teacher
Give an example of natural sound!
Confirmed by teacher
The volume of sound is measured in units called ….
decibels
Which part of your ear can be seen in the mirror?
pinna / ear lobe
Which part of the ear vibrates when sound waves come to ears?
ear drum
What are the three tiny bones in the middle ears?
Hammer, anvil, and stapes
The ear has three parts ….
the outer, middle, and inner ear
.... is a form of energy that travels through space.
sound
Give an example of natural source of light?
firefly, sun, stars, bioluminessences
Give three examples of opaque objects!
chair, desk, wall, briks, eood, etc
Light travels in ... line
straight
When light bounces back it is ….
reflected
I have a set of lenses that allows scientists to study and observe the universe and the galaxy where we live. Who am I?
Telescope
My lenses allow us to know the world of microorganisms such as bacteria. Who am I?
Microscope
