If heat leaves a substance, it becomes colder (temperature falls) and when heat enters it becomes warmer (temperature climbs). Note that, because of entropy, heat will only go from warm to cold things.
That depends on whether the state of the receiving substance remains the same, i.e. solid, liquid or gas. If it remains the same, the temperature increases, if it does not remain the same, the temperature may or may not remain the same.
The temperature of the substance giving off the heat decreases because it has in essence given its heat to another substance, whose temperature increases.
Temperature falls.
When a sample of a substance absorbs thermal energy, its temperature rises.
As the temperature rises, the viscosity, meaning a substance's resistance to flow decreases because a liquid based substance melts, and flows more.Viscosity decreases as temperature increases.
The temperature remain constant during the phase changing.
If you define "thermal energy" as heat, and the "substance" is not affected by any energy that increases or decreases its temperature, by definition, nothing will happen to its temperature. If the substance reacts to electromagnetism, light or other radiation, it may increase or decrease its temperature, depending on the nature of the substance and its reaction to those energies. Note: See Discussion question.
Increasing temperature means increased kinetic energy on the atomic or molecular level. Temperature of a given substance is the average kinetic energy of the particles of which that substance is composed.
As a substance changes state, the temperature remains constant.
When a sample of a substance absorbs thermal energy, its temperature rises.
Changes the temperature of the substance
Its temperature remains constant.
The solubility of solids in water increases with the increasing temperature.
Generally, as temperature increases, solubility increases. There are a few cases where the opposite happens, though.
it heats up
What happens would depend on what sort of matter you are stirring in.
The conversion of one substance to another substance is a chemical change, which happens as a result of a chemical reaction.
It floats.
As the temperature rises, the viscosity, meaning a substance's resistance to flow decreases because a liquid based substance melts, and flows more.Viscosity decreases as temperature increases.
The temperature remain constant during the phase changing.