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Ch 1 & 2
Science
| Term | Definition |
|---|---|
| Solid | -A definite shape, a definitive volume, particles close together, strong attractive forces between particles. |
| Liquid | -no definite shape, a definite volume, particles close together, weaker attractive forces between particles than in solids, particles free to move past neighboring particles |
| Gas | -no definite shape, no definite volume, particles very far apart, very weak attractive particles that are very far apart, particles move freeky |
| Law of conservation of Mass | the total mass before a chemical reaction is the same as the total mass after a chemical reaction |
| Mass | the amount of matter in an object |
| Weight | the gravitational pull on the mass of an object |
| Volume | the amount of solute that can be dissolved in a given amount of solvent at a given temperature and pressure |
| Density | the mass per unit volume of a substance |
| Melting Point | when a material changes from a solid to a liquid |
| Boling point | when a material changes from a liquid to a gas |
| Formula for density | Density = mass/ volume |
| Physical change | a change in the size, shape, form, or state of matter that does not change the matter's identity |
| Chemical change | a change in matter in which the substance that makes up the matter change into other substances with different chemical and physical properties |
| Law of Conservation of Energy | energy can be transformed from one form into another or transferred from one region to another, but energy cannot be created or destroyed. |
| Kinetic Energy | Energy due to motion |
| Potential Energy | stored energy due to the interaction between objects or particles |
| Gravitational Potential Energy | stored energy between the earth and an object |
| Elastic Potential Energy | stored energy in an object that are compressed or stretched |
| Chemical Potential Energy | stored energy in the chemical bonds between atoms |
| Mechanical Energy | the sum of potential energy and kinetic energy in a system |
| Sound Energy | the energy that sound carries |
| Thermal Energy | the sum of kinetic energy and potential energy of particles that make up an object |
| Electric Energy | the energy an electric current carries |
| Radiant Energy | the energy that electromagnetic waves carry |
| Nuclear Energy | energy that is stored and released in the nucleus of an atom |
| Hypothesis | an informed guess that can be tested |
| prediction | a statement of what will happen next in a sequence |
| qualitative observation | an observation made using you senses |
| quantitative observation | an observation made through measurements |
| dependent variable | information gathered or measured during an experiment |
| independent variable | the variable that changes in an experiment |
| data | information gathered during an experiment |
Created by:
tpeterson280
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