If a hot liquid is poured into a cup, the cup will soon feel warm. How does the increase in temperature change the particles that make up the cup?

Adding energy (heating) atoms and molecules increases their motion, resulting in an increase in temperature.

Removing energy (cooling) atoms and molecules decreases their motion, resulting in a decrease in temperature.

Energy can be added or removed from a substance through a process called conduction.

In conduction, faster-moving molecules contact slower-moving molecules and transfer energy to them.

During conduction the slower-moving molecules speed up and the faster-moving molecules slow down.

Temperature is a measure of the average kinetic energy of the atoms or molecules of a substance.

Heat is the transfer of energy from a substance at a higher temperature to a substance at a lower temperature.

Some materials are better conductors of heat than others.

Explanation:

the scientific method.