The Sun gives off thermal energy in the form of ________.
radiation
The name of the process in which a solid phase changes to a liquid.
melting
When temperature increases, kinetic energy _________.
increases
Putting a wool sock on your feet keeps your feet warm. But putting a wool sock on a cold drink keeps it cold. This is because wool is a(n) ____________.
insulator
Touching a hair straightener while it is still hot transfers heat through the method of ___________.
conduction
The process of phase changing from a liquid to a solid.
freezing
When kinetic energy decreases, thermal energy _________.
decreases
If you touch a metal pan and a plastic pan, the metal pan feels colder, even though both are the same temperature. This is because the metal is conducting heat from ____________.
your hand
Hot air rising in a house is an example of the method of heat transfer known as __________.
convection
When enough thermal energy is added to LIQUID matter the molecules gain enough kinetic energy to become a _____.
gas
Heat is known as the transfer of ________ _______ from one object to another.
thermal energy
A pot of water starts to boil on the stove. The water at the bottom of the pot should be ________ than the water at the top of the pot.
hotter
Putting a heating pad on sore muscles is an example of the method of heat transfer known as ___________.
When enough thermal energy is taken away from liquid, the state of matter changes from a liquid to a _______.
solid
When thermal energy is removed from a system, the temperature of that system ____________.
decreases
In a classroom (70°F), an ice cube (30°F) is placed on a plastic table, and it starts to melt. If thermal energy is moving between the classroom air and the ice cube, the ________ ________ is receiving an increase in thermal energy.
ice cube
Blood circulation in warm blooded animals is an example of the method of heat transfer known as ____________.
convection
A large amount of thermal energy is added to water in the liquid state. The molecules begin to move ________ ______ , and the liquid becomes a gas.
farther apart
Heat is the transfer of thermal energy from one object to another, while temperature is the average ________ ________ of the system as a whole.
kinetic energy
Two cups of water start at different temperatures. One is just above freezing, and one is almost boiling hot. After sitting for about an hour, their temperatures of the water will be nearly ________.
the same (reach equillibrium)