click below
click below
Normal Size Small Size show me how
chapter 1 vocab
Term | Definition |
---|---|
science | the study of the natural world through observations and logical reasons |
observing | the process of using one or more of your senses to gather information |
inferring | the process of making an inference, an interpretation based on observations and prior knowledge |
predicting | The process of forecasting the what will happen in the future based on past experience or evidence |
chemistry | the study of the properties of matter and how it changes |
physics | the study of matter,energy motion, and forces and how they interact |
scientific inquiry | the process of discovery in science |
hypothesis | a possible explanation for a set observations or answers to a science question |
parameter | a factor that can be measured in an experiment |
manipulated variable | the one variable parameter that changes during an experiment |
responding variable | the variable parameter that changes to the manipulated,or independent variable in an experiment |
controlled experiment | an experiment in which only one parameter is manipulated at a time |
data | facts,figures,and other evidence gathered through observations |
communicating | the process of sharing ideas with others through writing and speaking |
model | a representation of an object or process |
scientific thoery | a well tested explanation for a wide rage of observations or experimental results |
scientific law | a statement that describes what will happen every time under a particular set of conditions |
SI | International system of units |
Weight | the force of gravity on an object |
mass | the amount of matter an object contains |
volume | amount of space an object takes up, 3-D |
meniscus | curved water in a graduated cylinder |
Estimation | an approximation of a number based on reasonable assumptions |
accuracy | how close the measurement is to the actual value |
reproducibility | refers to how close a group of measurements are |
significant figures | measurement include all digits that have been measured exactly |
percision | measurement with an exactness of the measurement |
graph | a picture of your data |
horizontal axis | runs left and right or |
vertical axis | the point where the two axes cross |
coordinate | pair of numbers used to determine position of data piont |
data point | the point showing the location of the intersection |
line of best fit | the smooth line that reflects the general pattern of the graph |
linear graph | a line graph which data points yield a strait line |
slope | steepness of the graph line |
non-linear graphs | where the data points do NOT follow in a straight line |