Royal Society of Chemistry
Royal Soc. Of Chemistry: Kitchen Chemistry: Chemical Changes During Cooking [Pdf]
Article, with embedded questions, describes the chemical changes that take place when meat is cooked when sugar is heated, and when fruits brown.
Khan Academy
Khan Academy: Test Prep: Mcat: Chemical Processes: Thermochemistry: Endothermic vs. Exothermic Reactions
Using an illustrated example, the difference between an endothermic and an exothermic reaction is described. The concept of enthalpy, or heat energy change, is explained, and the energy diagrams of reactions are presented.
Khan Academy
Khan Academy: Test Prep: Mcat: Chemical Processes: Chemistry of Buffers and Buffers in Our Blood
Explains what a buffer is, how it is prepared, how it works to resist drastic changes in pH, and the characteristics of an effective buffer. Human blood also contains a buffer which is crucial for maintaining the blood's pH.
Michigan State University
Michigan State University: How Pesticide Resistance Develops
An individual organism's genes determine its physical and behavioral traits. When individuals reproduce, they pass along unique combinations of genes to their offspring. Different environments favor individuals with different physical...
Other
Irac: Resistance Definition
Resistance may be defined as 'a heritable change in the sensitivity of a pest population that is reflected in the repeated failure of a product to achieve the expected level of control when used according to the label recommendation for...
Khan Academy
Khan Academy: Thermodynamics Article
Thermodynamics is a very important branch of both physics and chemistry. It deals with the study of energy, the conversion of energy between different forms and the ability of energy to do work. Through this article, you will begin to...
University of California
Asi: What Is Sustainable Agriculture
Agriculture has changed dramatically, especially since the end of World War II. Food and fiber productivity soared due to new technologies, mechanization, increased chemical use, specialization and government policies that favored...
Akron Children's Hospital
Akron Children's Hospital: Kidshealth: What You Need to Know About Drugs
Drugs are chemicals that change the way a person's body works. Some drugs help you feel better, but drugs also can harm you. Learn more in this article for kids.
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