Can Healthy Plants Be Grown in Soil Containing No Microorganisms?Advanced-Level Science ProjectsBotanyHow Close to a Plant Must Pesticides Be in Order to Be Beneficial?Can Healthy Plants Be Grown in…
(Encyclopedia) Garrick, David, 1717–79, English actor, manager, and dramatist. He was indisputably the greatest English actor of the 18th cent., and his friendships with Diderot, Samuel Johnson,…
(Encyclopedia) Q fever, disease caused by Coxiella burnetii, a small, Gram-negative bacterium. The bacterium infects livestock (cattle, goats, and sheep) and other domesticated animals, and is found…
(Encyclopedia)
Common Weights and Measures
Length
Metric System
1 millimeter = 1/1,000 meter
1 centimeter = 1/100 meter
1 decimeter = 1/10 meter
1 meter (basic unit of length)
1 dekameter…
What Substance Melts Ice Fastest?Science Projects for BeginnersChemistryWhat Household Cleaners Break Down Jell-O Best?What Substance Melts Ice Fastest? Another fun chemistry project is to test a…
(Encyclopedia) surface chemistry, study of chemical reactions in which the reactants are first adsorbed onto a surface medium (see adsorption) that then acts as a catalyst for the reaction; after the…
(Encyclopedia) specific heat, ratio of the heat capacity of a substance to the heat capacity of a reference substance, usually water. Heat capacity is the amount of heat needed to change the…
This glossary of Norse Mythology gives brief descriptions of the many characters involved in the stories and legends of Norse mythology. Aesir: Chief gods of Asgard.Andvari: Dwarf; robbed of…
(Encyclopedia) functionalism, in anthropology and sociology, a theory stressing the importance of interdependence among all behavior patterns and institutions within a social system to its long-term…
