As a member youll also get unlimited access to over 75000 lessons in math english science history and more plus get practice tests quizzes and personalized coaching to help you succeed.
radioactivity radioactivity property exhibited by certain types of matter of emitting energy and subatomic particles spontaneously it is in essence an attribute of individual atomic nuclei radioactive decay is a property of several naturally occurring elements as well as of artificially produced isotopes of the elements.
chemical element also called element any substance that cannot be decomposed into simpler substances by ordinary chemical processeselements are the fundamental materials of which all matter is composed this article considers the origin of the elements and their abundances throughout the universe.
A fact is something that is consistent with objective reality or can be proven with evidencethe usual test for a statement of fact is verifiability that is whether it can be demonstrated to correspond to experiencestandard reference works are often used to check facts.
Beaches are the areas of land that border oceans as well as lakes and rivers many are tropical and warm while others are muddy rugged and freezing.
Heroes and villains a little light reading here you will find a brief history of technology initially inspired by the development of batteries it covers technology in general and includes some interesting little known or long forgotten facts as well as a few myths about the development of technology the science behind it the context in which it.
Citing and more add citations directly into your paper check for unintentional plagiarism and check for writing mistakes.
Gem facts awesomegemscom the gia type color scale the 3 charts below are based on the gia gemological institute of america color stone grading system where the color with its various hues the tone and the saturation of.
Articles home page creation vs evolution 0 introduction and table of contents the following is an organized presentation on the creation vs evolution controversy.