click below
click below
Normal Size Small Size show me how
chapter1
Term | Definition |
---|---|
science | study of structure and behavior of physical and natural world through observation and experiment |
observing | notice or perceive something and register it as being significant |
inferring | deduce or conclude information from evidence and reasoning rather than from explicit statement |
predicting | estimate that a specific thing will happen in the future will be a consequence of something |
chemistry | the branch of science that deals with the identification of the substance in which matter is composed |
physics | the branch of science concerned with the natural and properties of matter and energy |
scientific inquiry | ideas as well as understanding |
hypothesis | supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation |
parameter | measureable factor forming one of a set that defines a system or sets the conditions of its operation |
manipulated variable | something that the experimenter purposely changes or varies over the course of the investigation |
responding variable | is the one that is observed and likely changes in response to the independent variable |
controlled experiment | quantities that scientist wants to remain constant |
data | facts and statistics collected together for reference or analysis |
communicating | share or exchange information,news,ideas |
model | the art or activity of making three-dimensional models |
scientific theory | well-substantiated explanation of some aspect of the natural world that is acquired |
scientific laws | statement based on repeated experimental observations that describes some aspects of the universe |
si | international system inits |
mass | the amount of matter object has |
vertical axis | graph line that runs up and down |
horizontal axis | the graph line that runs left to right |
coordinate | pair of numbers used to determine the positive of a point of a graph |
data point | points showing the location of that intersection |
linear graph | a line graph in which the data points yield a straight line |
slope | slope of a graph line tells you how much y changes for every chance in x |
nonlinear graph | not denoting involving,or arrange in a straight line |
line graphs | diagram of lines made by connected data points which represents successive changes in the value of a variable quantity or quantities |
linear trends | based on the least squares regression |
meniscis | curved upper surface of a liquid in a tube |
estimate | roughly calculate or judge the value,number,quantity,or extend of |
accuracy | the quality or state of being correct or precise |
significant | sufficiently great or important to be worthy of attention noteworthy |
figures | a number especially with one that form part of official statistics or relates financial performance of a company |
precision | quality,condition or fact of being exact also accurate |
origan | a point or place where something begins arises,or is derived |
line of best fit | line on a graph which shows a direction of a group |
graph | diagram showing the relation between variable qualities typical of 2 variables each measured along one of a pair of axes at right angles |
weight | a body relative mass or the quantity of matter contained by it giving rise to a downward force the heaviness of a person or thing |
motion | distance from other object changes |
reference poin | a place or object used for comparison to determine if something is in motion |
distance | is the length a path between two points |
displacement | the length and direction that an object has moved from its starting point |
victor | quantity that consists of both magnitude and a direction |
motion | distance from other objects changes |
reference point | is a place or object used for comparison to determine if something is in motion |
distance | is the length of a path between two points |
displacement | is the length and direction that an object has moved from its starting point |
vector | a guantity that consists of both magnitude and a direction |
speed | of an object is the distance the object travels per unit of time |
average speed | to calculate |
instantaneous speed | is the rate at which an object is moving at a given instant in time |
velocity | is speed in a given direction |
geocentric | is when earth is at the center of the revolving plants and stars |
heliocentric | is a model of the solar system |
ellipse | is an oval shape maybe elongated or nearly circular |
moon | is a natural satellite that revolves around a planet |
astronomical unit | is a equal meter |
nuclear fusion | is the process in which hydrogon atoms joins together |
core | the central region of the sun |
radiation | is a region of very tightly packed gas where energy is transferred |
convection | is the outer most layer of the suns interior |
photosphere | the inner layer of the suns atmosphere |
chromosphere | the middle layer of the suns atmosphere |
corona | the outer layer of the suns atmosphere |
solar wind | a stream of electrically changed particles that emitates from the sun |
sunsports | are areas of gas on the suns surface |
prominences | a huge reddish loop of gas |
solar flares | an eruption of gas from the suns surface |
terrestrial planets | the name often given to the four inner planets |