Graphing In Science 2013 Objective SWBAT 1 Communicate
Graphing In Science 2013
Objective • SWBAT (1) Communicate data through tables and graphs. (2) Create appropriate graphs based on data.
What is the purpose of a data table? • Present information in a usable format
What is the point of a graph? • Make information more accessible • Make information more clear
What are the parts of a graph?
What are the parts of a graph? Y is x -a Title X-axis
What are the parts of a graph? X-axis = IV
What are the parts of a graph? = s i x a V Y D X-axis = IV
Dependent vs. Independent Variables • Dependent Variable- depends on the other variable to occur • Growth of a plant depends on days or daylight • Deer population depends on the time of year • Independent Variable- Occurs with or without the dependent variable • Ex-Time • Also known as the • controlled variable • manipulated variable
Types of Graphs/Charts • Bar-Used to compare individual information • Ex- average height of boys vs. girls • Line-Used to compare things over a period of time • Average monthly growth of boys vs. girls over a year • Pie-(Not used in science) Used for percentages
Bar Graphs
Line Graphs
General labeling procedure • “C” The Graph
Line or Bar? • • • Average Height of students in the class Growth of fish in a tank over a year Average household income each month Number of eggs laid per month Distance of targets in a throwing competition Growth of bacteria in a petri dish
What is wrong here? Wrong format
What is wrong here? Wrong format
What is wrong here? Incorrect scaling
What is wrong here? Misrepresentation
Importance of scale
Quick Practice (Left Page) Copy this table down and create a line graph for it! Fertilizer Amount in (mg) - IV Plant Height in (cm) - DV 5 10 10 13 15 15 20 20
Graphing Reaction Time • Step 1 - Design the experiment • Step 2 - Determine the dependent and independent variables • Step 3 - Create a data table • Step 4 - Run experiment • Step 5 - Graph information • Choose your graph type • “C” the graph • Choose appropriate scale
Boys Name Avg. Distance cm Girls Name Avg. Distance cm
- Slides: 24