# Physical Science Ch. 1

 An organized set of investigation procedures. A. observations B. scientific method C. theory scientific method A possible explanation for a problem A. theory B. experiment C. hypothesis hypothesis Test the hypothesis A. theory B. experiment C. hypothesis experiment A quantity that can have more than a single value. A. variable B. model C. constant variable Its value changes according to the changes in the independent variable. A. independent variable B. dependent variable C. constant dependent variable The variable you change to see how it will affect the dependent variable. A. independent variable B. dependent variable C. constant independent variable A factor that does not change A. control B. variable C. constant constant The standard by which the test results can be compared. A. control B. variable C. constant control Occurs when what the scientist expects changes how the results are viewed. A. bias B. theory C. control bias Represents an idea, event , or object to help people better understand it. A. experiment B. control C. model model An explanation of things or events based on knowledge gained from many observations and investigations. A. scientific law B. theory C. hypothesis theory A statement about what happens in nature. A. scientific law B. theory C. hypothesis scientific law Application of science to help people. A. technology B. scientific law C. hypothesis technology An exact quantity that people agree to use to compare measurements. A. control B. standard C. variable standard Standards that are universally accepted and understood by scientists throughout the world. a. control b. SI c. feet SI Unit used to measure distance. A. gram B. meter C. liter meter Unit used to measure time. A. meter B. liter C. second second Unit used to measure mass. A. gram B. meter C. liter gram Unit used to measure volume. A. gram B. meter C. liter liter Unit used to measure temperature. a. Kelvin b. second c. gm/cm3 Kelvin Unit used to measure density a. Kelvin b. second c. gm/cm3 gm/cm3 Amount of space occupied by an object A. mass B. volume C. distance volume The amount of matter in an object. A. mass B. volume C. distance mass The mass per unit volume of a material A. density B. mass C. distance density A unit obtained by combining different SI units. A. constant B. derived unit C. label derived unit EX: gm/cm3 cm2 Visual display of information A. data B. model C. graph graph Shows change over time. A. line graph B. bar graph C. circle graph line graph Located on the horizontal (x) axis. A. dependent variable B. independent variable independent variable Located on the vertical (y) axis. A. dependent variable B. independent variable dependent variable Graph useful for comparing information collected by counting A. line graph B. bar graph C. circle graph bar graph Graph that shows how a fixed quantity is broken down into parts. A. line graph B. bar graph C. circle graph circle graphs Authorbogera ID64766 Card SetPhysical Science Ch. 1 DescriptionPhysical Science Ch. 1 Updated2011-02-07T22:40:26Z Show Answers