# Title: The Effect of the Independent Variable on the Dependent Variable By: Student name(s)

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Title: The Effect of the Independent Variable on the Dependent Variable By: Student name(s)

Title Score Card Pts EarnedPts Possible Capital Letters where appropriate for a title 3 Independent Variable 2 Dependent Variable 2 Effect 3 Total010

The Effect of Amount of Time Frozen on the Distance a Rubber Band will Stretch

The Effect of Player on Number of Fouls and Total Points

Testable Question How does changing (Independent Variable) affect (Dependent Variable)?

Testable Question Pts Earned Pts Possible Capital Letter at beginning of question 2 Question Mark at end of question 2 Question starts with "How does" 3 Question is measureable 3 Total010

How does changing the length of time frozen affect how far a rubber band will stretch?

Are fouls and total points related at the player level?

Hypothesis If the (independent variable) is (describe how the variable was changed), then the (dependent variable) will (describe the effect).

HypothesisPts EarnedPts Possible Capital Letter at beginning of hypothesis and end punctuation 3 Hypothesis is in "If…then…" format 3 IV and DV in appropriate places 4 Total010

If the rubber bands are stored in the freezer at 0 o F for one week, then the distance stretched will be one centimeter more than all other rubber bands stored in the freezer.

If a player has only 1 foul, then the player will have 7 points.

Variable Identified Independent Variable Dependent Variable Constant(s) ActionVariable purposely changed Measurable response to change All other factors kept the same

VariablesPts EarnedPts Possible Correct Independent Variable identified 10 Correct Dependent Variable identified 10 At least 5 Constants identified 10 Total030

IV: Time in Freezer DV: Distance Rubber Band Stretches Constants: Type of Rubber Band, Freezer Temperature, How Rubber Band is Stretched, Person Stretching Rubber Band, Time out of Freezer Prior to Stretching Rubber Band

IV: Number of Fouls DV: Number of Points Constants: Player, Game, Opponent, Time Played, Level of Restedness

Data Table Independent Variable Trial 1Trial 2Trial 3Average

Data TablePts EarnedPts Possible Correct Independent Variable on left of table 3 Correct Title 1 At least 3 Trials Labeled 3 Average of Trials 1 Data in correct cells 2 Total010

The Effect of Amount of Time Frozen on the Distance a Rubber Band will Stretch Number of Weeks in FreezerTrial 1Trial 2Trial 3 Average Distance Stretched in Centimeters before Rubber Band Broke 011101211 18998.67 210.5 89.67 314131012.33

The Effect of Player on Number of Fouls and Total Points Lincoln PlayerFouls 1st quarter points 2nd quarter points 3rd quarter points 4th quarter points Total points Expected Points Roberts0020020 Kroenke, Tr1202042.78571 Kroenke, Ty3000008.35713 Sanders52203713.9286 Yearout1000002.78571 Eckhoff0002350 Kroenke, B1342092.78571 Spunaugle1222062.78571 Kranz2240065.57142

Graph Make sure to include an appropriate title, x and y axis are both labeled with appropriate titles and scales, and plotting is correct.

GraphPts EarnedPts Possible Correct Independent Variable on X-axis 1 Labels for IV 1 Correct Title 1 Correct Dependent Variable on Y-axis with units 2 Numbers on Y-axis 1 Data plotted correctly 4 Total010

An abstract is a synopsis of the project. The abstract will be no more than 250 words. The abstract appears at the beginning of the report as well as on the display board. The abstract will have the following pieces included: Introduction problem statement Procedures Results conclusion. Abstract

Pts EarnedPts Possible Intro 3 Hypothesis 5 Procedures 5 Results 5 Conclusion 3 250 words 3 No Pronouns 3 All graded material 3 Total030

The Effect of Amount of Time Frozen on the Distance a Rubber Band will Stretch The claim has been made that storing rubber bands in a cool place will increase the shelf life of the rubber bands. This experiment indicates there may be some truth in the statement. In a short three week experiment, rubber bands were placed in a freezer for varying amounts of time and then stretched to find out how far the rubber bands would stretch prior to breaking. The control for this experiment was zero amount of time in the freezer. The rubber bands in the freezer for three weeks stretched, on average, 1.33 cm further than the rubber bands that were never in the freezer. The rubber bands in the freezer for one week or two weeks did not stretch as far as the control rubber bands. Although further testing is needed to find the optimal amount of time to achieve the optimal amount of stretch in a rubber band, this experiment suggests storing rubber bands in the freezer will increase how far a rubber band will stretch.

The Effect of Player on Number of Fouls and Total Points Are fouls and total points related at the player level? The hypothesis, if a player has only 1 foul, then the player will have 7 points, was found to not have a relationship. From looking at data from a basketball game, the number of fouls is not an indicator of how many points a player will make. If the number of points was related to the number of fouls, then the points made would be evenly distributed by fouls made. Looking at the players that committed only one foul, the points made by those players is not the same and not 7 points each.

Conclusion In your conclusion, your data will “support” or “not support” your hypothesis. It is not a “right” or “wrong” situation. You will summarize the data in this section.

ConclusionPts EarnedPts Possible Hypothesis is stated correctly 6 "Support" or "not supported" in statement 6 Data is summarized using averages from data table 8 No Pronouns 5 All graded material 5 Total030

In conclusion, the hypothesis, if the rubber bands are stored in the freezer at 0 o F for one week, then the distance stretched will be one centimeter more than all other rubber bands stored in the freezer, was not supported. The control rubber bands, on average stretched 11 cm. The rubber bands frozen for one week stretched, on average, 9.67 cm. Rubber bands frozen for two weeks stretched, on average, 9.67 cm. The rubber bands frozen for three weeks stretched, on average, 12.33 cm.

In conclusion, the hypothesis, if a player has only 1 foul, then the player will have 7 points, was not supported. There seems to be no consistent relationship between fouls and points scored at the individual level.

Procedures The procedures will be listed out in steps. Such as: 1. 2. 3.

ProceduresPts EarnedPts Possible Listed correctly in a numerical list 3 Sufficient instructions to conduct the experiment 4 Directions given in complete sentences 3 Total010

Procedures 1.Determine when the rubber bands will be broken. This will take some time and has to be finished as quickly as possible once started. 2.Mark closable plastic bags with the date to put the rubber bands in the freezer. (One week from the previously determined date, two weeks from the previously determined date, and three weeks from the previously determined date.) 3.Place four rubber bands in each of the four bags and close the bag. 4.On the appropriate date, place the bag with the four rubber bands in the freezer. 5.Prior to taking the rubber bands out of the freezer, a stretching board needs to be built. Use a 1” x 4” approximately 21 cm long. Drive two finish nails in the board 1.5 cm from the end and 1.5 cm from either edge.

Procedures, cont. 6. On a piece of paper wider than the gap between the two nails, secure a metric tape measure with masking tape with the zero end at the very edge of the paper. 7. Secure the paper to the board against the two nails with masking tape with the measuring tape in the middle. 8. Place one rubber band on the two nails. 9. Pull both sides of the rubber band along the tape measure with the wire hook until the rubber band breaks. 10.Record the measurement of how far the rubber band was pulled before breaking in the data table. 11. Break at least three of the rubber bands and record all data.

Procedures 1.Collect data including player fouls and player points from a basketball game. 2.Graph the fouls and points for each player. 3.Pay attention to the graphed data to determine if there is any consistent trends in the data (i.e. if the fouls stay low the points increase for a player).

Materials List List all the materials needed to do this investigation / experiment.

Materials ListPts Earned Pts Possible Listed in a bulleted list 4 Sufficient amounts of materials listed to conduct the experiment 6 Total010

Materials List 16 matching rubber bands Freezer space Closable plastic bags (Ziploc snack bags work well) 1” x 4” by 21 cm board 2 eight penny finish nails Hammer Metric measuring tape Masking tape Paper 10 x 20 cm Sturdy wire hook

Materials List Data from Official Score Book from a basketball game Graph paper and pencil or Excel Program on a computer

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