Chemistry of Cooking
Cooking cake ingredients makes this kind of change to the structure of the batter.
What is a physical change?
A pure substance made of only one kind of atom.
What is an element?
This is a branch of medical science concerned with the incidence, distribution, and control of diseases that affect large numbers of people.
What is epidemiology?
A body of rock or sediment that stores groundwater and allows the flow of groundwater.
What is an aquifer?
A huge body of air that has similar temperature, humidity, and air pressure at any given height.
What is an air mass?
What is salt?
A substance made up of atoms of two or more different elements joined by chemical bonds.
What is a compound?
This is a disease that appears in the population for the first time, or an old disease that suddenly becomes harder to control.
What is an emerging disease?
This is the process of converting nitrogen gas into nitrogen compounds that plants can absorb and use.
What is nitrogen fixation?
Protective layer in atmosphere that shields earth from UV radiation, but on the ground is a harmful pollutant.
What is the Ozone Layer?
This ingredient has five main functions in baking: binding, thickening, coating, leavening, and emulsifying.
What is an egg?
A very large organic molecule composed of many smaller molecules.
What are macromolecules?
These are agents, such as chemicals and viruses, that can reach the embryo or fetus during prenatal development and cause harm.
What is a teratogen?
Any form of water that falls from clouds and reaches Earth's surface.
What is precipitation?
This is a platinum, coated device that oxidizes most of the VOCs and some of the CO that would otherwise be emitted in exhaust, converting them to CO2.
What are catalytic converters?
The browning of cakes and cookies and pretzels is caused by this process.
What is the Milliard Reaction?
This scale is a measure of how acidic or basic a solution is.
What is the pH scale?
A gas that arises from the earth where radioactive materials are present.
What is radon?
This law states that matter is not created nor destroyed in any chemical or physical change.
What is the Law of Conservation of Matter?
This is produced as a result of reactions that primary air pollutants undergo.
What are secondary air pollutants?
This a method used to preserve dairy products, vegetables, and meat for extended periods before the advent of refrigeration and modern canning practices.
What is Lactic Acid Fermentation?
This feedback mechanism controls blood sugar levels. When blood sugar rises, the body senses the change and the pancreas secretes insulin into the bloodstream.
What is negative feedback loop?
This is the accumulation of pollutants at successive levels of the food chain.
What is bioaccumulation?
A process by which nutrients, particularly phosphorus and nitrogen, become highly concentrated in a body of water, leading to increased growth of organisms such as algae or cyanobacteria.
What is eutrophication?
This set emission standards for cars and limits for release of air pollutants.
What is the Clean Air Act?