Inquiry: How do I design a controlled experiment? (identifying variables, controls and experimental groups) Journal Entry: A race is an investigation. Using the videos and your knowledge of how races are set up, in a short paragraph: a)Describe at least (3) variables that stay the same for all the contestants during a race. b)Why are these variables the same for all the contestants?

Inquiry: How do I design a controlled experiment? (identifying variables, controls and experimental groups) Key terms: 1)Controlled Experiment: a fair experiment, because all the variables that are not being tested stay the SAME. The ONLY variable you manipulate/choose to change is the independent variable. 2) Bias: unfair; prejudice.

Inquiry: How do I design a controlled experiment? (identifying variables, controls and experimental groups) Independent Variable Dependent Variable Constant/Control Variables -Variable that I choose to change because I’m testing it. - The “if” part of your hypothesis -The variable that I measure. The response. -The “then” part of the hypothesis. - The variables that I keep the SAME. This keeps the experiment fair.

Inquiry: How do I design a controlled experiment? (identifying variables, controls and experimental groups) Rule to setting up a controlled experiment You only choose 1 variable (the independent variable) to manipulate (change) when designing a fair controlled experiment!!! ALL OTHER VARIABLES ARE KEPT CONSTANT (SAME)

Inquiry: How do I design a controlled experiment? (identifying variables, controls and experimental groups) Task: Practice identifying the independent variable, dependent variable, and constant variables. Based on each investigation question, determine which variable should be the independent variable, the dependent variable, and a constant variable by placing a check in the box. (only check one box for each question)

Inquiry: How do I design a controlled experiment? (identifying variables, controls and experimental groups) Example: (from “Super-Size Me” Video” How does the type of food affect how fast it spoils? Variable Independ. Depend. Constant 1)Type of container [ ] [ ][ ] 2)Time in container [ ] [ ][ ] 3)Room food was in [ ] [ ][ ] 4)Type of food [ ] [ ][ ] 5)How long to spoil [ ] [ ][ ]

Inquiry: How do I design a controlled experiment? (identifying variables, controls and experimental groups) 2): How does the height of a basketball hoop affect how many shots I make ? Variable Independ. Depend. Constant 1) Size of basketball [ ] [ ][ ] 2)Height of basketball hoop[ ] [ ][ ] 3)Amount of shots I make [ ] [ ][ ] 4)Distance I shoot the ball [ ] [ ][ ] 5)Type of ball I use [ ] [ ][ ]

Inquiry: How do I design a controlled experiment? (identifying variables, controls and experimental groups) 3): How does the speed at which a rope is turning affect how long I can jump without stopping? Variable Independ. Depend. Constant 1) How long I jump… [ ] [ ][ ] 2)The people turning… [ ] [ ][ ] 3)The surface I am jumping..[ ] [ ][ ] 4)The type of rope [ ] [ ][ ] 5)The length of the rope [ ] [ ][ ] 6) The speed the rope is turn.. [ ] [ ][ ]

Task: Today we will set up an investigation as a class to answer the question: “How does the type of ball (tennis ball vs. wiffle ball) affect how many shots I make in a container?” Complete the IDD by: 1)Entering the title: “The affect of the type of ball (tennis ball vs. wiffle ball) on the amount of shots I make in a container.” 2)Entering the question (See above) 3)Writing an “if…then…because…” hypothesis 4)Identifying the Independent variable for this investigation. 5)Identifying the Dependent Variable for this investigation. 6)Identifying at least 3 constant variables for this investigation. Inquiry: How do I design a controlled experiment? (identifying variables, controls and experimental groups )

1)Entering the title: “The affect of the type of ball (tennis ball vs. wiffle ball) on the amount of shots I make in a container.” 2)Entering the question: “How does the type of ball (tennis ball vs. wiffle ball) affect how many shots I make in a container?” Inquiry: How do I design a controlled experiment? (identifying variables, controls and experimental groups )

1)We will pass a wiffle ball and a tennis ball around the circle. Take about 10 secs (each student) to make qualitative observations about the differences between them. 2) Writing an “if…then…because…” hypothesis Inquiry: How do I design a controlled experiment? (identifying variables, controls and experimental groups )

1)Identifying the Independent variable for this investigation. 2)Skip the part that says “Levels of I.V” 3)Identifying the Dependent Variable for this investigation. 4)Identifying at least 3 Constant variables for this investigation. “How does the type of ball (tennis ball vs. wiffle ball) affect how many shots I make in a container?” Inquiry: How do I design a controlled experiment? (identifying variables, controls and experimental groups )

Data: PersonTypeDistanceHeightCircumf.TakenMade Christennis390 cm 76 cm73 cm50 wiffle390 cm76 cm73 cm50 How does the type of ball affect how many shots I make? (Per.1) PersonTypeDistanceHeightCircumf.TakenMade Luistennis390 cm 76 cm73 cm50 wiffle390 cm76 cm73 cm50

Data: PersonTypeDistanceHeightCircumf.TakenMade Landontennis 51 wiffle51 How does the type of ball affect how many shots I make? (Per.1) PersonTypeDistanceHeightCircumf.TakenMade Jordantennis 53 wiffle50

Data: PersonTypeDistanceHeightCircumf.TakenMade Zahirtennis390cm 76cm73 cm51 wiffle390cm76 cm73cm51 How does the type of ball affect how many shots I make? (Per.1) PersonTypeDistanceHeightCircumf.TakenMade Amya tennis390cm 76cm73cm51 wiffle390 cm76 cm73cm50

Data: PersonTypeDistanceHeightCircumf.TakenMade Maliktennis300 cm 93 cm66 cm53 wiffle300 cm93 cm66 cm51 How does the type of ball affect how many shots I make? (Per.4) PersonTypeDistanceHeightCircumf.TakenMade Serge tennis300 cm 93 cm66 cm51 wiffle300 cm93 cm66 cm51

Data: PersonTypeDistanceHeightCircumf.TakenMade Jesus tennis300 cm 93 cm66 cm51 wiffle300 cm93 cm66 cm50 How does the type of ball affect how many shots I make? (Per.4) PersonTypeDistanceHeightCircumf.TakenMade Olay tennis300 cm 93 cm66 cm51 wiffle300 cm93 cm66 cm51

Data: PersonTypeDistanceHeightCircumf.TakenMade Erona tennis300 cm 93 cm66 cm51 wiffle300 cm93 cm66 cm53 How does the type of ball affect how many shots I make? (Per.4) PersonTypeDistanceHeightCircumf.TakenMade Kathy tennis300 cm 93 cm66 cm50 wiffle300 cm93 cm66 cm50

Data: PersonTypeDistanceHeightCircumf.TakenMade daysiahtennis300 cm 93 cm68 cm5 0 /5 wiffle How does the type of ball affect how many shots I make? (Per.8) PersonTypeDistanceHeightCircumf.TakenMade eli tennis300 cm 93 cm68 cm5 1 /5 wiffle

Data: PersonTypeDistanceHeightCircumf.TakenMade jaylah tennis300 cm 93 cm68 cm5 o /5 wiffle How does the type of ball affect how many shots I make? (Per.8) PersonTypeDistanceHeightCircumf.TakenMade marcotennis300 cm 93 cm68 cm5 0 /5 wiffle

Data: PersonTypeDistanceHeightCircumf.TakenMade alicatennis300 cm 93 cm68 cm5 wiffle How does the type of ball affect how many shots I make? (Per.8) Person5TypeDistanceHeightCircumf.TakenMade zuri tennis300 cm 93 cm68 cm5 / wiffle

Inquiry: How do I design a controlled experiment? (identifying variables, controls and experimental groups) Do Now: 1)Answer the 3 questions below the data tables.

Inquiry: How do I design a controlled experiment? (identifying variables, controls and experimental groups) 3): How are the amount of shots I make affected by the distance I shoot the ball from? Variable Independ. Depend. Constant 1) Size of ball [ ] [ ][ ] 2)Height of container [ ] [ ][ ] 3)Amount of shots I make [ ] [ ][ ] 4)Distance I shoot the ball [ ] [ ][ ] 5)Type of ball I use [ ] [ ][ ] 6)Size of the container [ ] [ ][ ]

Inquiry: How do I design a controlled experiment? (identifying variables, controls and experimental groups) PersonType of Ball Distance from container Height of container Size of contain. Amount of shots taken Amount of shots made 1) 2) 3) 4) How are the amount of shots I make affected by the distance I shoot the ball from?

Inquiry: How do I design a controlled experiment? (identifying variables, controls and experimental groups) 1): How does the type of ball I use affect how many shots I make ? Variable Independ. Depend. Constant 1) Size of ball [ ] [ ][ ] 2)Height of container [ ] [ ][ ] 3)Amount of shots I make [ ] [ ][ ] 4)Distance I shoot the ball [ ] [ ][ ] 5)Type of ball I use [ ] [ ][ ] 6)Size of the container [ ] [ ][ ]

Inquiry: How do I design a controlled experiment? (identifying variables, controls and experimental groups) PersonType of Ball Distance from container Height of container Size of contain. Amount of shots taken Amount of shots made 1) 2) 3) 4) How does the type of ball I use affect how many shots I make ?

PersonType of Ball Distance from container Height of container Size of contain. Amount of shots taken Amount of shots made ChedTenn.450cm137cm80cm51 JackTenn.450cm137cm80cm51 HerbertTenn.450cm137cm80cm50 DavidTenn.450cm137cm80cm50 PersonType of Ball Distance from container Height of container Size of contain. Amount of shots taken Amount of shots made Ched. Jack Tenn. 450cm 137cm 65cm HerbertTenn.450cm137cm65cm51 DavidTenn.450cm137cm65cm50 How are the amount of shots I make affected by the size of the container?

Inquiry: How do I design a controlled experiment? (identifying variables, controls and experimental groups) 1): How is the height of a plant affected by the amount of water i? Variable Independ. Depend. Constant 1) Size of the paper [ ] [ ][ ] 2)Shape of the paper [ ] [ ][ ] 3)Height paper is dropped [ ] [ ][ ] 4)Type of paper [ ] [ ][ ] 5)How fast the paper falls [ ] [ ][ ]

Inquiry: How do I design a controlled experiment? (identifying variables, controls and experimental groups) 1): How does the height of a container affect how many shots I make ? Variable Independ. Depend. Constant 1) Size of ball [ ] [ ][ ] 2)Height of container [ ] [ ][ ] 3)Amount of shots I make [ ] [ ][ ] 4)Distance I shoot the ball [ ] [ ][ ] 5)Type of ball I use [ ] [ ][ ] 6)Size of the container [ ] [ ][ ]

Inquiry: How do I design a controlled experiment? (identifying variables, controls and experimental groups) 2): How are the amount of shots I make affected by the size of the container? Variable Independ. Depend. Constant 1) Size of ball [ ] [ ][ ] 2)Height of container [ ] [ ][ ] 3)Amount of shots I make [ ] [ ][ ] 4)Distance I shoot the ball [ ] [ ][ ] 5)Type of ball I use [ ] [ ][ ] 6)Size of the container [ ] [ ][ ]