click below
click below
Normal Size Small Size show me how
Science Chapter 1
Chapter #1 Skills
Question | Answer |
---|---|
accuracy | the closeness of a measurement to the true value of what is measured |
astronomy | the study of the universe beyond earth |
3 types of variables | controlled experiment, scientific law, controlled variable |
scientific notation | a system that makes very large or very small numbers easier to work with |
bar graph | when you use scaled bars to repreent varies measurements when you want to compare a set of simular data |
biology | the study of life and life processes |
chemistry | the study of the composition, structure, properties and reactions of matter |
circle/pie graph | using a divided circle with each slice representing a porportional fraction relates the part to the whole |
controlled experiment | only one variable is changed at a time |
controlled variable | everything has to be the same. The things that have to stay the same (study time, lighting) |
conversion factor | a ratio of equivalent measurements that is used to convert a quanity from one unit to another |
density | the ratio of a material's mass to its volume |
density of water | 1g/cm3 |
direct proportion | relation of which the ratio of 2 variables is constant |
geology | the study of the origin, history, and structure of earth |
hypothesis | a proposed answer to a question |
inverse proporation | a relationship in which the product of 2 variables is a constant |
length | the straight line distance between 2 points (use meter stick) |
line graph | shows relationship of 2 variables, variable Y plotted VS variable X. shows how one variable responds to changes in the other variable |
manipulated variable | causes the change in another variable (indendpent variable) |