The movement of very small particles in matter produces energy, known as thermal energy
Thermal energy can be transferred to another object, and this energy transfer is called heat
When an object absorbs heat, it turns into thermal energy, causing its small particles to vibrate faster and increase their energy
A higher average energy from the movement of particles results in high temperature, with heat moving from an object with high temperature to one with lower temperature
Temperature is the measure of hotness or coldness of matter, representing the average kinetic energy for molecules of a substance
Heat is measured by a thermometer, and the sun is the biggest example of heat energy in our solar system, radiating heat as radiant energy to warm the Earth