Science Fair: fun for all

Science Fair: fun for all

Science Fair: fun for all

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Presentation Transcript

1. Science Fair: fun for all Mrs. Becky Mueller Ms. Tami Folden Lincoln R-2 Schools

2. What does a science fair teach? • Science Fair is cross curricular. All areas are at least touched upon with Science Fair • Math skills such as measuring, averaging, and collecting data • English skills such as communicating effectively and reading non-fiction material • Scientific Inquiry is Science Fair (GLEs) • Next Generation Science Standards (NGSS)

3. The Effect of the Independent Variable on the Dependent Variable • By: Student name(s)

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

5. The Effect of Player on Number of Fouls and Total Points

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

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

8. Are fouls and total points related at the player level?

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

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

11. Variable Identified

12. IV: Time in FreezerDV: Distance Rubber Band StretchesConstants: Type of Rubber Band, Freezer Temperature, How Rubber Band is Stretched, Person Stretching Rubber Band, Time out of Freezer Prior to Stretching Rubber Band

13. IV: Number of FoulsDV: Number of PointsConstants: Player, Game, Opponent, Time Played, Level of Restedness

14. Data Table

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

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

17. Abstract 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 Testable Question Procedures Results Conclusion

18. 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.

19. 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.

20. 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.

21. In conclusion, the hypothesis, if the rubber bands are stored in the freezer at 0o 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.

22. 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.

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

24. Procedures • Determine when the rubber bands will be broken. This will take some time and has to be finished as quickly as possible once started. • 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.) • Place four rubber bands in each of the four bags and close the bag. • On the appropriate date, place the bag with the four rubber bands in the freezer. • 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.

25. 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. • 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.

26. Procedures • Collect data including player fouls and player points from a basketball game. • Graph the fouls and points for each player. • 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).

27. Materials List • List all the materials needed to do this investigation / experiment by using bullets. • Include amounts of each material needed.

28. 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

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

30. How do I start? • Students need some background knowledge before jumping into experiments. • Variables • What they are • How to write them • Hypothesis • What it is • How to write one

31. variables • Students have a really hard time remembering which variable is which • Color coding seems to help a whole lot. • Foldables to refer back to help. • Lots and lots of practice.

32. Variables foldable

33. Variables foldable

34. Variables foldable

35. Practice practicepractice

36. Practice practicepractice