Formal DefinitionsPhotosynthesis - A process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water.Osmosis - The movement of water molecules through a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration.Democracy - A system of government by the whole population or all the eligible members of a state, typically through elected representatives.Atom - The smallest unit of a chemical element that retains its chemical properties.Evaporation - The process by which water changes from a liquid to a gas or vapor.Informal Definition SentencesPhotosynthesis is how plants make their food using sunlight.Osmosis is water moving through a membrane to balance out concentrations.Democracy is when people get to vote and choose their leaders.An atom is like a tiny building block that makes up everything around us.Evaporation happens when water heats up and turns into steam or vapor.