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DK Science: Disease

HEART DISEASE INFECTIOUS DISEASES CANCER FIND OUT MORE When a person has a disease, a part of that person’s body fails to function properly. Diseases produce different patterns of symptoms:…

DK Human Body: Health

WHAT ARE THE MAJOR HEALTH ISSUES IN THE WORLD TODAY? HOW DOES LIFESTYLE AFFECT HEALTH? LIFE EXPECTANCYNUTRITIONFIND OUT MOREBeing healthy means being free of disease or injury and able to lead a…

1999 World History

Thabo Mbeki (1942–) Eileen Collins (1956– ) NASA   1999 U.S. agrees to ease restrictions on Cuba (Jan. 4). Dennis Hastert elected to replace Newt Gingrich as Speaker of the…

hemophilia

(Encyclopedia) hemophiliahemophiliahēˌməfĭlˈēə, –fēlˈyə [key], genetic disease in which the clotting ability of the blood is impaired and excessive bleeding results. The disease is transmitted…

arteriosclerosis

(Encyclopedia) arteriosclerosisarteriosclerosisärtĭrˌēōsklərōˈsis [key], general term for a condition characterized by thickening, hardening, and loss of elasticity of the walls of the blood vessels…

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…

Teachers' Top 100 Books for Children

Source: National Education Association (NEA). Web: www.nea.org/readacross/resources/catalist.html . This list was compiled from an online survey by the NEA in 2007. See also Kids' Top 100 Favorite…

Biology Science Projects

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