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**Experimental Design Jeopardy**

IV/ DV Variables Hypothesis Testable Questions Graphing 10 20 30 40 50

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**The variable that is manipulated**

IV/DV 10 points The variable that is manipulated A

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IV/DV Answer 10 points Independent Variable

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**Identify the Dependent variable in the following:**

IV/DV 20 points Identify the Dependent variable in the following: Susan conducted an experiment to see if the different types of paper would effect how far a paper airplane would fly. A Category

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**The distance a paper airplane will fly.**

Answer for IV/DV 20 points The distance a paper airplane will fly.

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**A Measureable response is called _______________**

IV/DV for 30 A Measureable response is called _______________ A Category

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**Answer for 30 points IV/DV**

Dependent Variable

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IV/DV 40 points What is the independent Variable and Dependent Variable in the following? Tom was experimenting with different amounts of Mentos in diet coke. He wanted to see how many Mentos would give the highest explosion. A

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**Surprize Double Jeopardy**

Answer for IV/DV 40 points If you answered both parts you can add 80 points to your score. Surprize Double Jeopardy IV- Amount of Mentos DV- Height of Explosion

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**Identify the Independent and Dependent Variable in the following:**

IV/DV for 50 points CHALLENGE CHALLENGE Identify the Independent and Dependent Variable in the following: Julie wanted to know what type of surface- sand, wood or gravel would a car travel the fastest on. A CHALLENGE CHALLENGE CHALLENGE

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**IV- Type of Surface DV- Time or Speed**

Answer for IV/DV 50 points You just earned 50 pts if you were the challenger and the challenged team has the wrong answer. -- If you were challenged and have this right you earn 100 pts! IV- Type of Surface DV- Time or Speed

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Variables for 10 points Constants are _______ A

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**Answer for Variables for 10 points**

All the other variables in the experiment that need to remain the same.

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Variable for 20 points Why is it important for all the other variables to remain the same in an experiment? Switcheroo !! A

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**Answer for Variables 20 points**

If you got this right you may choose any table to switch the current table score with. If you got this wrong you did not earn any points. To have a Fair Test- so you know that what you tested (the IV) is what is responsible for the results that were obtained

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**Why do you need a control in an experiment?**

Variables for 30 points Why do you need a control in an experiment? A

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**Answer for Variables 30 points**

You need to be able to compare your results to some kind of standard. Compare your results to something you know.

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**In the following: Identify at least two constants**

Variables for 40 points In the following: Identify at least two constants Ten seeds were planted in each of 5 pots found around the house that contained 500 g of “Pete’s Potting Soil.” The pots were given the following amounts of distilled water each day for 40 days: Pot1, 50ml; Pot2, 100ml; Pot 3, 150 ml; Pot 4, 200 ml; Pot 5, 250 ml. Because pot 3 received the recommended amount of water it was used as a control. The height of each plant was measured at the end of the experiment. A

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**Answer for Variables 40 points**

Type of water Amount of soil Type of soil Pots should be the same size and type of container 10 seeds Type of seeds Board

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**What is the control in this scenario?**

Variable for 50 points What is the control in this scenario? A shopping mall wanted to determine whether the more expensive “Tough Stuff” floor wax was better than the cheaper “Steel Seal” floor wax at protecting its floor tiles against scratches. One liter of each grade of floor wax was applied to each of 5 test sections of the main hall of the mall. The test sections were all the same size and were covered with the same kinds of tiles. Five other test sections received no wax. After 3 weeks, the number of scratches in each test section was counted. A

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**Answers to Variables 50 points**

The test sections with no wax. The control is always the level of independent variable with the least manipulation or the “normal”. Board

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Hypothesis for 10 points A hypothesis is more than an educated guess. It is a predict based on what? A

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**Answer to Hypothesis 10 points**

understanding of the scientific concept Board

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**What is the pattern for writing a hypothesis?**

Hypothesis for 20 points What is the pattern for writing a hypothesis? A

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**Answer to Hypothesis for 20 points**

If ( describe how the independent Variable is changing), then the (describe how the dependent variable is responding) because…. (reason why)

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Hypothesis for 30 points What is wrong with this hypothesis? CHALLENGE !! If the temperature of water is changing, then the time to dissolve a tablet will change because hot water melts things. A

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**Answer to Hypothesis for 30 points**

You just earned 30 pts if you were the challenger and the challenged team has the wrong answer. -- If you were challenged and have this right you earn 60 pts! Didn’t describe how the independent variable or the dependent variable is changing.

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**Write a hypothesis for the following scenario.**

Hypothesis for 40 pts Write a hypothesis for the following scenario. Susan tested how high 5 different brands of new tennis balls would bounce when dropped from a height of 2 meters. She dropped the balls so that they hit the same floor tile each time A

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**Answer to Hypothesis for 40 points**

EX. If different brands of tennis balls are dropped from a height of 2 meters, then Wilson tennis balls will bounce higher than any other brand because they use a special kind of rubber. Board

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Hypothesis for 50 points Tom was experimenting with different amounts of Mentos in diet coke. He wanted to see how many Mentos would give the highest explosion. Write a hypothesis for this experiment A

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**Answer to Hypothesis for 50 points**

If I increase the amount of Mentos, the height of the explosion from diet coke will increase because there will be more surface area in contact with the diet coke.

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**Which is the best insulation: foam or fiberglass?**

Testable Question for 10 Is this question testable? Which is the best insulation: foam or fiberglass? answer

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**No, best is an opinion. Answer to Testable Question for 10 points**

For 10 bonus points, change the previous question in a testable question board

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**Testable Question for 20 points**

STAND!!!! FREE SQUARE board

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**Testable Question 30 points**

Is the following a testable question? How does the amount of sunlight effect the height of a plant? Board A

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**How does the amount of sunlight effect the height of a plant?**

Answer to Testable Question 30 points Yes, it is because it shows a cause/effect relationship between the independent and dependent variable. How does the amount of sunlight effect the height of a plant? board

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**Testable Questions for 40 points**

Ten seeds were planted in each of 5 pots found around the house that contained 500 g of “Pete’s Potting Soil.” The pots were given the following amounts of distilled water each day for 40 days: Pot1, 50ml; Pot2, 100ml; Pot 3, 150 ml; Pot 4, 200 ml; Pot 5, 250 ml. Because pot 3 received the recommended amount of water it was used as a control. The height of each plant was measured at the end of the experiment. Write a testable question for this scenario. Answer

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**Answers for Testable Questions 40 points**

What is the effect of different amounts of water on height of a plant? board

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**Testable Questions 50 points**

Write a testable question for the following: Jill tested different colors of mash potatoes (white, blue, green and red) on how many kindergarteners would chose each color. Answer board

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**Answer to Testable Question for 50 points**

What is the effect of color of mash potatoes on number of kindergarteners who will chose red, blue and green? board

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**What needs to be included in the title of a graph?**

Graphing for 10 points What needs to be included in the title of a graph? Answer board

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**Answer to Graphing for 10 points**

Both the independent and dependent variables plus what we are doing with the data ex: comparing Board

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**Switcheroo In which column do you find the independent Variable?**

Graphing for 20 points Type of Water Time (units) Average Time (units) Regular koolaid Sugar Salt In which column do you find the independent Variable? Which is the Dependent Variable? Switcheroo Answer Board

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**The First column is the Independent Variable (IV) **

Answers to Graphing for 20 points If you got this right you may choose any table to switch the current table score with. If you got this wrong you did not earn any points. The First column is the Independent Variable (IV) The column above the trials is the Dependent Variable board

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**We only graph the averages not the trials.**

Graphing for 30 points Answer True or False We only graph the averages not the trials. board

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**Answer to Graphing 30 points**

TRUE Board

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**What is wrong with this graph?**

Graphing for 40 points Answer board

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**Answer to Graphing for 40 pt.**

No units Should be a line graph board

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**Challenge Find the Missing Average.**

Answer Graphing for 50 points Challenge Find the Missing Average. Why do we have need multiple trials? Type of Water Time (s) Average Time (s) Regular 2 3 2.33 koolaid 4 5 Sugar Salt 6 5.66

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**You just earned 100 pts if you were the challenger and the challenged team has the wrong answer.**

-- If you were challenge d and have this right you earn 200 pts! Average is 4 s We need multiple trials so we have confidence that our data is reliable and accurate. If we made mistakes we would be able to tell where we might have made them. board

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