Answer:
Thermal expansion occurs when an object expands and becomes larger due to a change in that specific object's temperature. Temperature is the average kinetic (basically movement) energy of the molecules in a substance. A higher temperature means that the molecules are moving faster on average.
Answer: Thermal expansion occurs when an object expands and becomes larger.
Explanation: This occurs when a change ( increase or decrease )
Forms in an objects temperature
For example, Increase in size of a material due to added heat.
Decrease in size of material when heat is removed.
