1. Kinetic energy: the energy of a moving object.
2. Potencial energy: energy stored in an object or material.
3.temperature: the average kinetic energy of the molecules in a material.
4.Heat: energy that flows between objects that have different temperatures.
5. Radiation: the transfer of energy by electromegnetic waves.
6.Conduction: the transfer of energy by direct contact of moleculas.
7. Convection: the transfer of energy by the flow of a liquid or gas.
Insulation:prevents heat from flowing in or out of a material.
sience class
martes, 26 de abril de 2011
domingo, 3 de abril de 2011
Vocabulary 3
Compound: A chemical combination of tow or more elements.
Chemical bond: A link that atoms or electrically charged particles can form with each other.
Chemical formula: A way of using letters and numbers to show how much of each element is in a substance.
Ion: An electrically charged particle with unequal numbers of protons and electrons:
Molecule: A group of bonded atoms that acts liki a single particle.
Chemical property: A way of describing how a substance changes chemically with otherb subtance.
Exothermic: A reaction thet gives off heat.
Endothermic: A reaction that absorbs heat.
Chemical bond: A link that atoms or electrically charged particles can form with each other.
Chemical formula: A way of using letters and numbers to show how much of each element is in a substance.
Ion: An electrically charged particle with unequal numbers of protons and electrons:
Molecule: A group of bonded atoms that acts liki a single particle.
Chemical property: A way of describing how a substance changes chemically with otherb subtance.
Exothermic: A reaction thet gives off heat.
Endothermic: A reaction that absorbs heat.
sábado, 2 de abril de 2011
vocabulary 2
Element: A substance that cannot be broken down any further into anything simpler.
Atom: the smallest particle of an element that has the same chemical properties as the element.
Nucleus: an atom's dense center, where most of its mass is.
Electron: a negatively charged particle that moves around an atom's nucleus.
Proton: a positively charged perticle inside an atom´s nucleus.
Neutron: a perticle with no charge inside an atom´s nucleus.
Atomic number: the number of protons is an atom.
Metal: any of a group pf elements that conduct heat and electricity, is shiny and bandale.
Atom: the smallest particle of an element that has the same chemical properties as the element.
Nucleus: an atom's dense center, where most of its mass is.
Electron: a negatively charged particle that moves around an atom's nucleus.
Proton: a positively charged perticle inside an atom´s nucleus.
Neutron: a perticle with no charge inside an atom´s nucleus.
Atomic number: the number of protons is an atom.
Metal: any of a group pf elements that conduct heat and electricity, is shiny and bandale.
Suscribirse a:
Entradas (Atom)