Conservation Of Mass

The law of Conservation of mass, also known as principle of Mass destroyed, although it may be rearranged in space, and changed into different types of particles. This implies that for any chemical process in a Closed system, the mass of the reactants must equal the mass of the products.

As opposed to mass conservation, the principle of matter conservation may be considered as an approximate physical law, that is true only in the classical sense, without consideration of Special relativity and Quantum mechanics. Another difficulty with the idea of conservation of "matter," is that "matter" is not a well-defined word scientifically, and when particles which are considered to be "matter" are annihilated to make photons then conservation of matter does not take place, even in isolated systems.

Mass is also not generally conserved in "open" systems , when various forms of Energy are allowed into, or out of, the system . However, the law of mass conservation for closed systems, as viewed over time from any single Inertial frame, continues to be true in modern Physics. The reason for this is that relativistic equations show that even "massless" particles such as photons still add mass and Energy to closed systems, allowing mass to be conserved in all processes where energy does not escape the system. In relativity, different observers may disagree as to the particular value of the mass of a given system, but each observer will agree that this value does not change over time, so long as the system is closed.

1. Conservation of Mass - Solid Mechanics. The conservation of mass is a fundamental concept of physics along with the conservation of energy and the conservation of momentum.
2. Conservation of mass Define Conservation of mass at Dictionary.com - Copy paste this link to your blog or website to reference this page
3. BrainPOP - Animated Educational Site for Kids - Science, Social - Conservation of Mass. Contrary to what your local magician might tell you, things cannot appear out of nowhere! In this BrainPOP movie, Tim and Moby will teach you all about the law
4. BrainPOP Science Learn about Conservation of Mass - Animated Science, Health, Technology, Math, Social Studies, Arts Music and English movies, quizzes, activity pages and school homework help for K-12 kids, aligned with state

1. 2010-09-04T21:56:16Z : Researchers back from Pacific garbage mass - San Diego Union-Tribune - That s the latest focus for researchers in an ongoing project to understand and clean up a Texas-sized garbage mass located in the ocean more than 1,000 Conservation experts have debated Project Kaisei s goal. ... (San Diego Union-Tribune)
2. 2010-08-29T17:52:51Z : Diamondback terrapins focus of Barnegat Bay study - Boston Herald - conservation and technology goes into an ongoing 20-year study of diamondback terrapins and the conditions Mass. Avery said volunteers this year came from the United States, Japan, Canada and Britain. ... (Boston Herald)
3. 2010-08-26T19:50:56Z : Best of Austin Texas - Congress Avenue Bridge and Bob Bolluck Museum - - Conservation International, Congress Avenue Bridge is one of the largest the bat colony begins its nightly hunt in mass. As the bats emerge, they form an aerial river of winged mammals flowing out from under ... (Associated Content)
4. 2010-08-29T14:39:35Z : Mass. towns get grants to protect Buzzards Bay - Boston Globe - State Energy and Environmental Affairs Secretary Ian Bowles says the money will also go toward land conservation and infrastructure improvements to preserve rare species habitats and restore herring migration grounds. ... (Boston Globe)

1. 2010-09-05T12:40:12Z : Ben W, Benjamin42 - I love it when people think they've broken the law of conservation of mass . :D