Photosynthesis
It is the process by which plants change the energy in sunlight to kinds of energy that can be stored for later use. Plants carry out this process in photosynthetic reaction centers. These tiny units are found in leaves, and convert light energy to chemical energy, which is the form used by all living organisms.
Chemical Reaction
chemical reaction, a process in which one or more substances, the reactants, are converted to one or more different substances, the products. Substances are either chemical elements or compounds. A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products.
Thermal Energy
the energy contained within a system that is responsible for its temperature.
reactant
Products
a substance that is present at the end of a chemical reaction.
ExoThermic
any chemical reaction that absorbs heat from its environment
EndoThermic
of a reaction or process accompanied by or requiring the absorption of heat.