| Term | Definition |
|---|
| observation | direct evidence obtained through the use of senses; the act of... |
| inference | a hypothesis, drawn from observations, that attempts to explain or to make sense of the observations |
| circumstantial evidence | indirect evidence, gathered through observation, that is used to make an inference about something unknown |
| particle | a small unit of matter that, with others, forms a larger whole |
| model (scientific model) | a way of showing something that helps you visualize it and lets you make predictions about it |
| Kinetic Molecular Theory | states that matter is made up of very tiny particles that are in constant motion |
| cohesion | the force of attraction between two particles that are the same |
| adhesion | the force of attraction between two particles that are unlike |
| solid | a state of matter in which the particles have the least amount of kinetic energy and the most cohesion |
| liquid | a state of matter in which the particles have a middle amount of kinetic energy and cohesion |
| gas | a state of matter in which the particles have the most kinetic energy and the least cohesion |
| endothermic | energy is added to complete the phase change (and break the attraction) ex. melting |
| exothermic | energy is removed to complete the phase change to overcome the motion e. freezing |
| heat | a measure of the total energy of the molecules (particles) of a substance |
| temperature | a measure of the average kinetic energy of the molecules in a substance |
| heat transfer-conduction | when heat moves from one substance to another by direct contact of molecules |
| heat transfer-convection | can be described as hot stuff rises, cool stuff sinks |
| heat transfer-radiation | the movement of heat through space in the from of infrared radiation (invisible light) |
| thermal equilibrium | equal temperatures |
Combine with other sets
Share on Facebook
Share on MySpace
!