Heat CH 4 Prentice Hall p CH 4 Prentice Hall p Transfer

The energy transferred from a hotter object to a colder object. – The hotter something is, the faster its molecules are moving. – Does ice have heat? Heat

Three ways it is transferred: – Conduction – Radiation – Convection Heat Transfer

Heat transfer by direct contact of particles of matter Particles bump into each other and transfer their energy heating them up. Conduction

The transfer of energy through empty space Moves in waves – Sunlight – Open fire. Climate Radiation

Safety

Heat transfer by the circular movement of particles (liquids and gasses) Particles transfer heat Caused by differences in density. Convection

Density = Mass / Volume Heated Fluids: – Move faster and bump into other particles – They spread out increasing the volume – Density decreases. How Convection Works

Cooling Fluids – Move slower – They come together, decreasing the volume – Density increases. How Convection Works

Convection Lab

Convection and Sea

The Ocean Floor