Search

Search results

Displaying 311 - 320

Life-Changing Science Discoveries

Try to imagine life without antibiotics. We wouldn’t live nearly as long as we do without them. Here’s a look at some discoveries that have changed the world. It’s impossible to rank their…

Chicago, Ill.

Mayor: Rahm Emanuel (to April 2019)2010 census population (rank): 2,695,598 (3); Male: 1,308,072 (48.5%); Female: 1,387,526 (51.5%); White: 1,212,835 (45.0%); Black: 887,608 (32.9%); American Indian…

Biology Science Projects

Science projects for all grades.   More Science Projects Botany Science ProjectsChemistry Science ProjectsEarth Science ProjectsPhysical Science ProjectsRelated Links Biology: General (…

colon cancer

(Encyclopedia) colon cancer, cancer of any part of the colon (often called the large intestine). Colon cancer is the second most common cancer diagnosed in the United States. Epidemiological evidence…

eugenics

(Encyclopedia) eugenicseugenicsy&oomacr;jĕnˈĭks [key], study of human genetics and of methods to improve the inherited characteristics, physical and mental, of the human race. Efforts to improve…

DK Science: Glossary

Adaptationthe response of a living organism to changes in its environment.Agea unit of geological time, which is characterized by some feature (like an Ice Age).Ambera yellowish, fossilized tree…

DK Science: Biochemistry

FOOD FOR ENERGYBREAKING DOWN CARBOHYDRATESDIGESTIONRESPIRATIONENERGY RELEASEDFOOD FOR BUILDING MOLECULESAMINO ACID BUILDING BLOCKSPROTEIN CELLSDNAFIND OUT MOREThe study of the chemical processes of…

Selected Biographies: R

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z More Biographies Don't see the biography you're looking for? Search 30,000+ biographies Biographies…