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4th Grade Science Vocab - Test 10/22
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Heat Flow
the movement of heat from one object or area to another
Heat Gain
the increase in temperature in an object or space due to added heat
Heat Loss
the decrease in temperature in an object or space due to the escape of heat
Insulator (Poor Conductor)
a material that does not conduct heat or electricity well
Motion
the action or process of moving or being moved
Opaque
not able to be seen through; not transparent
Pitch
the highness or lowness of a sound, determined by frequency of the sound wave
Reflect
to bounce back light, heat or sound from another surface
Sound
vibrations that travel through the air or another medium and can be heard
Translucent
allowing some light to pass thought but not enough to see clear images
Transparent
allowing light to pass through so that objects behind can be distinctly seen
Vibration
a rapid back-and-forth movement that creates sound