Science Homework Help

Please answer the questions.

At a campfire, energy moves from the source which is the_________ to the sink which is the ____________ until both reach ___________ ________________.

_______________ is the transfer of heat by the collision of atoms or molecules. They are most effective in ______________.

Give an example of this process 

______________ is the transfer of heat in a liquid or gas.

Warm fluids are _________ dense and therefore _______.

Cool fluids are _________ dense and therefore ________.

Give an example of this process

_______________ is the transfer of energy through electromagnetic waves.

Name the electromagnetic spectrum

_________ ________, __________________, _________ ________________, ____________ __________, __________________ ________________, _________, and __________ _________.

No ______________ is required for electromagnetic energy to travel through.