PPT-Identifying independent and dependent variables

The independent variable This is the variable that the experimenter purposefully changes in order to see if it has an effect on behaviour In a lot of experiments the independent variable is . What are the odds?. To find the probability that a man has both a beard and a mustache would you multiply the probability of a man having a beard by the probability of a man having a mustache?. D. ependent Events. Lesson . 7.07. After completing this lesson, you will be able to say. :. I . can. use variables to represent quantities that have a relationship. .. I . can. show the relationship between two variables using tables and equations. Types of Variables. There are 2 main types of variables: . Independent Variable: . The variable that is changed by the scientist; the ‘. I control. ’ variable. Dependent Variable: . The variable that might change because of what the scientist changes – what is being measured . . 11/01. 1) a) What axis is the dependent variable on? . b) What axis is the independent variable on?. 2) If you were given a table, how would you know what was the independent variable. 3) What should be at the top of every graph? (how do you write this?. Using Variables . Created by Marcie Griffith 2012. Research questions are are framed around the possible relationship between an . independent. and . dependent. variable. . Independent Variable. Variable I will manipulate (change) in the experiment. AswiththeAfricanelephantexperiments,multipleexperimentalsetupsareimplemented,includingcaller-independent(CI),rank-dependent(RD),age-dependent(AD),gender-dependent(GD)andcaller-dependent(CD).Evaluation Science Fair Preparation. Testable Question . A question that asks how one change (independent variable) has a measureable effect on something else (dependent variable). . Testable Question . Does changing the height of the ramp affect the speed of a car going down the ramp?. What does it mean for something to . vary. ?. What does the word . dependent . mean?. Imagine you are creating an experiment to test your hypothesis that tomatoes grow better with fertilizer. What are some steps you would take?. Designing Investigations. 3 Kinds of Variables. Independent Variable – something that is changed by the scientist. What is tested. What is manipulated. 3 Kinds of Variables. Dependent Variable – something that might be affected by the change in the independent variable. i. ndependent variable?. d. ependent variable?. c. onstants?. Sara and Reggie wanted to perform an experiment. They decided to see if certain kinds of music would cause a person’s heart rate to increase. They had one group of students listen to rap music, one group listened to hard rock, and the third group listened to classical music. Density-dependent: . something that depends on the amount of organisms in a unit . area. . (5 examples to follow). So what in the world is a density-dependent limiting factor??. Crowded populations mean the individuals have to compete for food, water, space, sunlight, or anything else necessary for survival and reproduction. Saeed is getting ready for a hike. The number of hours he expects to be gone will affect how many snacks Saeed packs.. h = the number of hours Saeed expects to be gone. s = the number of snacks Saeed packs. The organized procedure used to study an aspect of the natural world under controlled conditions. Experimental Design. Testable Question. Research. Hypothesis. Materials/Procedure. Data Collection. Data Analysis. Unit 3. Purpose . Provided is a lesson for teachers to use to help students understand . how to construct and analyze function tables. Included are the following resources:. Common Core Standards. 6.EE.9 .