science 2

the transfer of heat that occurs when one thing touches another

• consideration

• conversation

• conduction

_________ occurs when two surfaces rub together

• friction

• ration

• mansion

fossil fuels are a source of _______

• ice

• cool

• heat

the force that results when two materials rub against each other or when their contact prevents sliding

• triciton

• friction

• nation

any push or pull

• movement

• force

• making

the force of attraction between any two objects

• objecting

• linking

• gravity

a force that acts on moving electric charges and magnetic materials

• gravity 

• electricity

• magnetism

forces can change the way objects _____

• move

• smell

• look

energy that is sent out in waves

• wavelength

• radiation

• radio