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|Name _____________________________||Date ___________________|
Complete the puzzle.
A type of material that tries to prevent the flow of thermal energy.
The transfer of thermal energy by direct contact between objects.
Sound waves travel through ____, but cannot travel through empty space.
Light and sound energy travels in the form of ____.
Heated air that is lighter than the surrounding air will ____.
____ waves can travel through empty space.
The movement of thermal energy through liquids and gases.
The complete path where an electrical current flows.
Conduction, convection, and radiation are three forms of ____ transfer.
Light waves travel ____ than sound waves.
Thermal energy that travels in waves and can pass through empty space as well as some objects.
Sound energy is formed from particles that are ____.
Sound waves travel ____ than light waves.