science
what is transparent
see through
what is a decibel?
How sound is measured
what is energy?
Energy is the ability to do work or make change
4 sources of light
fire, sun, bioluminescence, electricity
what is opaque
not see through
what is a vibration?
vibrations are back and forth motion
what are the 2 types of energy?
light and sound
what do we see with
eyes
what is pitch
how high or low a sound is
what is volume
how loud or quiet