a cup of cold water is a kind of cold substance & a hot boiled egg is put into a cup of cold water & a hot boiled egg is a kind of hot object ->  a hot boiled egg in cold water is an example of hot object in a colder substance  a hot boiled egg in cold water is an example of hot object in a colder substance & when a cooler object touches a warmer object , thermal conduction occurs ->  thermal conduction will occur between the hot egg and the cold water  thermal conduction will occur between the hot egg and the cold water & thermal conduction is when heat is transfer from a warmer object to a colder object ->  the heat will transfer from the hot egg to the cold water  the heat will transfer from the hot egg to the cold water & transferring heat from a hot object will cause the hot object to decrease in temperature ->  the hot egg will decrease in temperature  the heat will transfer from the hot egg to the cold water & receiving heat from a hot object will cause the cold object to decrease in heat ->  the cold water will increase in temperature  the hot egg will decrease in temperature & the cold water will increase in temperature -> the water will increase in temperature and the egg will decrease in temperature