if the liquid inside of a thermmometer is contracting what does it mean?
the substance being measured is cooling down
if a mobile is turning from a candle burning below it, what method of heat transfere is occuring?
what is the difference between an insulator and a conductor?
insulator limits the amount of heat that passes through it.
conductor easily allows heat to move into it
how does a radiator heat a room?
1 -water is heated in a boiler
2 -then steam is pumped into pipes in the radiator which passes through it into the air
3 -convection currents move the air
4 -cooler air returns to the radiator and the process begins again
how do radiation, conduction and convection all work on Earths surface?
1 -radiation from the sun heats up earths surface.
2 -then conduction transfers heat into earths air.
3 -convection currents form as the surface is heated
4 -warm air rises then cools and falls back to earth as rain or snow causing wind and rain patterns