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Across 1. the exact amount of heat needed 5. moves from higher temperature to something at a lower temperature 6. transfer of a fluid thermal energy 7. heat flows slowly,poor heat conductor 10. the measurement of the particles in a object 11. absorbs energy from the sun 12. thermal energy transfer by collision

Down 2. the heat engine in the car 3. converts heat into work 4. energy from electromagnetic waves 8. the sum of all particles 9. the study between heat, thermal energy,and work