lab equipment triple beam balance thermometer metric ruler measures mass, metric unit is the gram...

Lab Equipment

• Triple beam balance

• Thermometer

• Metric ruler

• measures mass, metric unit is the gram

• Measures temperature celsius/kelvin

• Measures length in centimeters or millimeters

Sol PS-1

Lab Equipment

• Graduated cylinder

• Spring scale

• Measures liquid volume, metric unit is milliliter or liter, read bottom of meniscus

• Measures force in Newtons

Graphs

• Bar graph

• Line graph

• Demonstrates change that is not continuous.

• Indicates trends when the data cover a long period of time.

• Demonstrates continuous change.

• Independent variable is on the X axis

• Set of data called a data pair.

Graphs

• Circular graph • Shows how each group of data relates to all of the data.

• Each part represents a category of the data.

Scientific Terms

• Density

• Weight

• Mass

• The amount of matter per given volume.

• D=Mass/Volume

• A measure of the gravitational force on an object, varies with location

• The amount of matter in an object

Scientific Terms

• Volume • The amount of space that matter occupies

• Liquid volume is measured with a graduated cylinder (mL or L)

• The volume of a solid is measured with a metric ruler (LxWxH) which is cubic centimeters

Scientific Terms

Independent variable

Dependent variable

• Also called the manipulative variable

• This is the variable that causes the change, the one you can control

• Located on the X axis

• Also called the responding variable

Scientific Terms

• Dependent variable

• Constant variable

• Control

• Is the result of the manipulated variable

• Located on the Y axis

• Factors or variables that stay the same

• The group that does not get any special treatment

Scientific Terms

• Scattergrams or Scatter Plots

• A graph that shows the relationship between two sets of data.

• Two sets of data are graphed as ordered pairs on a coordinate plane.

• Often shows a pattern, trend, or relationship between the variables

Scientific Terms

• Histograms • Type of bar graph used to display numerical data that have been organized into equal intervals.