Term | Definition |
Scientific inquiry | ways scientists study the world. |
Hypothesis | not a fact. |
Parameter | measured factor. |
Manipulated variable | purposely changed. |
Responding variable | expected to change. |
Controlled experiment | one parameter is manipulated |
Data | facts, figures, and data. |
Communicating | sharing ideas/conclusions. |
Model | a picture, diagram, computer image, or object. |
Scientific theory | wide ranges of observations or experiments results. |
Scientific law | scientists expect to happen under particular conditions. |
Science | the study of the natural world. |
Observing | using 1 or more senses to gather info. |
Inferring | guessing base on reasoning from what you already know. |
Predicting | making a forecast based on past experience or evidence. |
Chemistry | study of matter & how it changes. |
Physical | study of matter, energy, motion, forces & their interactions. |
SI | International System of Units. |
Weight | measure the force of gravity on you. |
Mass | measurement of matter of an object. |
Estimate | approximate number based on reasonable assumptions. |
Accuracy | refers to measurements that are true or actual value. |
Reproducibility | group of measurements are to each other. |
Significant Figures | measurements include digits measured exactly plus one digit estimated. |
Precision | measure of exactness of a measurements. |
Graph | picture of your data. |
Horizontal Axis | x-axis is the graph line that runs left to right. |
Vertical Axis | y-axis is the graph line that runs left to right. |
Origin | point where the two axes cross is called the origin. |
Coordinate | a pair of number used to determine the position of a point on a graph. |
Data Point | point showing the location of that intersection is called a data point. |
Line of Best Fit | a smooth line that reflects a general pattern of a graph. |
Linear Graph | line graph in which the data points yield a straight line called a linear graph. |
Slope | the steepness of the graph line. |
Non-Linear Graph | line graph in which the data points do not fall along a straight line is called a non-linear graph. |
Motion | distance from another object changes. |
Reference point | a place or object used for comparison to determine if something is in motion. |
Distance | the length of a path between two points. |
Displacement | length and direction that an object has moved from its starting point. |
Vector | quantity that consists of both magnitude and a direction |