what is a variable?. types of variables independent variable (a.k.a. “manipulated variable” or...
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![Page 1: What is a Variable?. Types of Variables Independent Variable (a.k.a. “Manipulated Variable” or “Test Variable”) The condition that will be changed by](https://reader033.vdocuments.mx/reader033/viewer/2022042703/5697c0111a28abf838ccbdf7/html5/thumbnails/1.jpg)
What is a Variable?
![Page 2: What is a Variable?. Types of Variables Independent Variable (a.k.a. “Manipulated Variable” or “Test Variable”) The condition that will be changed by](https://reader033.vdocuments.mx/reader033/viewer/2022042703/5697c0111a28abf838ccbdf7/html5/thumbnails/2.jpg)
Types of Variables
• Independent Variable (a.k.a. “Manipulated Variable” or “Test
Variable”)
The condition that will be changed by the scientist in an experiment.
![Page 3: What is a Variable?. Types of Variables Independent Variable (a.k.a. “Manipulated Variable” or “Test Variable”) The condition that will be changed by](https://reader033.vdocuments.mx/reader033/viewer/2022042703/5697c0111a28abf838ccbdf7/html5/thumbnails/3.jpg)
• Dependant Variable (a.k.a. “Responding Variable”)
The condition(s) that will be measured in an experiment; these are the experimental data.
Types of Variables
![Page 4: What is a Variable?. Types of Variables Independent Variable (a.k.a. “Manipulated Variable” or “Test Variable”) The condition that will be changed by](https://reader033.vdocuments.mx/reader033/viewer/2022042703/5697c0111a28abf838ccbdf7/html5/thumbnails/4.jpg)
• The Controls/Constants (a.k.a. “Controlled Variables)
The conditions that are kept the same (unchanged) in an experiment.
Typically, several can be identified.
Types of Variables
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Identify variables for the following three experiments.
You can do it!
Practice
![Page 6: What is a Variable?. Types of Variables Independent Variable (a.k.a. “Manipulated Variable” or “Test Variable”) The condition that will be changed by](https://reader033.vdocuments.mx/reader033/viewer/2022042703/5697c0111a28abf838ccbdf7/html5/thumbnails/6.jpg)
• Does changing the temperature of a ball affect the height the ball will bounce?
Testable Question #1
HotCold
With the person next to you, determine the following:
With the person next to you, determine the following:
What is the dependent variable?
What is the dependent variable?
What is the independent variable?
What is the independent variable?
What are the constants?
What are the constants?
![Page 7: What is a Variable?. Types of Variables Independent Variable (a.k.a. “Manipulated Variable” or “Test Variable”) The condition that will be changed by](https://reader033.vdocuments.mx/reader033/viewer/2022042703/5697c0111a28abf838ccbdf7/html5/thumbnails/7.jpg)
Independent Variable
Dependant Variable
Identify Variables #1
Cold Hot
• Does changing the temperature of a ball affect the height the ball will bounce?
![Page 8: What is a Variable?. Types of Variables Independent Variable (a.k.a. “Manipulated Variable” or “Test Variable”) The condition that will be changed by](https://reader033.vdocuments.mx/reader033/viewer/2022042703/5697c0111a28abf838ccbdf7/html5/thumbnails/8.jpg)
• Constants, or Controlled Variables (which things do not/are not changed) :
* Same ball * Dropped from the same height * Dropped onto the same surface * etc…
Identify Variables #1
![Page 9: What is a Variable?. Types of Variables Independent Variable (a.k.a. “Manipulated Variable” or “Test Variable”) The condition that will be changed by](https://reader033.vdocuments.mx/reader033/viewer/2022042703/5697c0111a28abf838ccbdf7/html5/thumbnails/9.jpg)
• Does changing the color of light affect the growth rate of plants?
Testable Question #2
With the person next to you, determine the following:With the person next to you, determine the following:
What is the dependent variable?What is the dependent variable? What is the independent variable?What is the independent variable? What are the constants?What are the constants?
![Page 10: What is a Variable?. Types of Variables Independent Variable (a.k.a. “Manipulated Variable” or “Test Variable”) The condition that will be changed by](https://reader033.vdocuments.mx/reader033/viewer/2022042703/5697c0111a28abf838ccbdf7/html5/thumbnails/10.jpg)
Independent Variable
(Manipulated)
Dependent Variable (Responding)
Identify Variables #2
• Does changing the color of light affect the growth rate of plants?
![Page 11: What is a Variable?. Types of Variables Independent Variable (a.k.a. “Manipulated Variable” or “Test Variable”) The condition that will be changed by](https://reader033.vdocuments.mx/reader033/viewer/2022042703/5697c0111a28abf838ccbdf7/html5/thumbnails/11.jpg)
• What are the ‘Constants’, the Controlled Variables:
* Same type / size of plant
* Same wattage of bulb
* Same amount of water
* Same soil
* Light on for the same amount of
time
* etc…
Identify Variables #2
![Page 12: What is a Variable?. Types of Variables Independent Variable (a.k.a. “Manipulated Variable” or “Test Variable”) The condition that will be changed by](https://reader033.vdocuments.mx/reader033/viewer/2022042703/5697c0111a28abf838ccbdf7/html5/thumbnails/12.jpg)
• How does the size of a parachute affect the time it takes a toy
hippo to fall 10 feet?
Testable Question #3
With the person next to you, determine the following:With the person next to you, determine the following:
What is the dependent variable?What is the dependent variable? What is the independent variable?What is the independent variable? What are the constants?What are the constants?
![Page 13: What is a Variable?. Types of Variables Independent Variable (a.k.a. “Manipulated Variable” or “Test Variable”) The condition that will be changed by](https://reader033.vdocuments.mx/reader033/viewer/2022042703/5697c0111a28abf838ccbdf7/html5/thumbnails/13.jpg)
Independent Variable
Dependent Variable
Identify Variables #3
• How does the size of a parachute affect the time it takes a toy hippo to fall 10 feet?
![Page 14: What is a Variable?. Types of Variables Independent Variable (a.k.a. “Manipulated Variable” or “Test Variable”) The condition that will be changed by](https://reader033.vdocuments.mx/reader033/viewer/2022042703/5697c0111a28abf838ccbdf7/html5/thumbnails/14.jpg)
• The Constants, or Controlled Variables:
* Same hippo
* Dropped from the same height
* Same parachute fabric
* Same length of strings on the parachute
* etc…
Identify Variables #3