Science

**Science Fair Marking Term 2 2011** ☒ Not achieved ☑ Achieved ☑☑ Advanced **Scientific Process and Background:** ☑☑ Clear aim/hypothesis carried through  ☑☑ Method, accurate experimentation   ☑☑ Accurate experimentation, controls, variables, repetitions   ☑☑ Results clear, accurate, include appropriate data   ☑☑ Conclusions are in line with aim/hypothesis   ☑ Results are interpreted and discussed (conclusion) **Technical Skill:** ☑☑ Design of the experiment  ☑☑ Use of apparatus and materials **Originality:** ☑☑ Imaginative/creative ideas  ☑☑ New/Unusual application in science **Presentation of Display:** ☑☑ Colour/form/clarity/graphics  ☑☑ Innovative appeal **Log Book:** ☒ Authentic ongoing record with raw data included    ☒ Has supporting documentation, bibliography, acknowledgements **Teacher Comment: ** Islah you have chosen an excellent topic here that is relevant to you. I know that you had some trouble getting help putting your boat together but you got their in the end and improvised. Your presentation is very effective and I am glad that you did not include a explanation that you did not understand yourself. It was a great idea to present yours as a podcast, if you chose to do this again next year double check to make sure it sounds good :)

**Science Experiment**

Christchurch has the ‘fastest’ long course swimming pool in New Zealand, Kilbirnie in Wellington the second ‘fastest’ and Westwave in Auckland the third ‘fastest’. Greerton Winter Swim Meet is being moved from the Greerton pool to Baywave, as Baywave is the ‘fastest’ short course pool in New Zealand and therefore it will attract more top quality swimmers. If swimmers know they have the chance of doing a good time, and qualify for more events, they want to go and swim in that pool .... so what makes a pool ‘fast’?
 * INTRODUCTION:**

I had a number of theories that could effect my speed through the water.
 * depth of water
 * temperature of water
 * chemicals in the water
 * hardness of the water

I decided against the depth of the water as Kilbirnie pool varies in depth from 5 meters at one end up to 1.2 meters at the other end, and yet it is still ranked the second fastest in New Zealand. Baywave is 2 meters deep across the whole pool and it is the fastest short course pool.

Chemicals (chlorine) may effect speed but Kilbirnie is treated with Ozone not chlorine. Christchurch pool and Baywave are both treated with chlorine and they are fastest, Kilbirnie is second.

If the water temperature is too hot for swimmers it causes muscles to loosen and makes swimmers overheated and feel tired. If the water temperature is too cold it causes muscles to tighten making it more difficult to swim.

Does water temperature effect speed through the water?
 * AIM:**

I don’t think water temperature will effect speed through water because all the public pools in the Bay of Plenty are between 22 and 28 degrees celsius. There is only 6 degrees difference from the coolest to the warmest and all but one of these pools are not considered fast.
 * HYPOTHESIS:**


 * EQUIPMENT:**
 * plastic boat
 * motor for boat
 * 3m length of pipe cut in half (for boat to float in)
 * string
 * stop watch
 * thermometer
 * paper and pen to record times and temperatures
 * water - enough boiling water to fill the pipe
 * ice - to add to the water to cool it down


 * METHOD:**
 * 1) Attach motor to boat
 * 2) Attach string to the top centre at one end of the pipe, stretch it the length of the pipe and attach it to the top centre at the other end (the string provides a guideline for the boat to run along ensuring it takes exactly the same path each time)
 * 3) Carefully fill pipe with boiling water
 * 4) Measure water temperature with thermometer and record
 * 5) Place boat at one end of pipe, set it off and time how long it takes to get to the other end
 * 6) Record the time it took for the boat to get from one end to the other
 * 7) Add enough ice to the water to drop the temperature by 10 degrees
 * 8) Measure water temperature with thermometer and record
 * 9) Repeat steps 5 through to 8 until water temperature reaches 15 degrees

The length of the pipe The wind resistance against the boat The the speed of the boat The placement of the pipe The thermometer The stopwatch
 * Constants and Variables:**
 * Constants:**


 * Variables:**

The manipulated variable was the adjusted temperature of the water.

I have allowed for this by testing the speed of the boat four times at the same water temperature and averaging out the speed.




 * RESULTS:**


 * **Water Temperature** |||||||| **Boat Speed in seconds** || **Average** ||
 * 55˚ C || 5.06 || 4.99 || 5.00 || 5.04 || 5.02 ||
 * 45˚ C || 4.85 || 4.65 || 4.81 || 4.72 || 4.75 ||
 * 35˚ C || 4.69 || 4.63 || 4.19 || 4.50 || 4.52 ||
 * 25˚ C || 4.45 || 4.32 || 4.31 || 4.23 || 4.32 ||
 * 15˚ C || 4.82 || 4.92 || 5.12 || 5.02 || 4.97 ||

I then tested the range at the lowest speed, which is also consistent with the research I had done stating that regulation competition pools should be at 25˚C-28˚C.


 * **Water Temperature** |||||||| **Boat Speed in seconds** || **Average** ||
 * 24˚ C || 4.56 || 4.67 || 4.45 || 4.58 || 4.56 ||
 * 25˚ C || 4.35 || 4.29 || 4.38 || 4.34 || 4.34 ||
 * 26˚ C || 4.51 || 4.44 || 4.42 || 4.39 || 4.44 ||
 * 27˚ C || 4.54 || 4.42 || 4.41 || 4.44 || 4.47 ||
 * 28˚ C || 4.45 || 4.51 || 4.48 || 4.41 || 4.47 ||



Water temperature does have an effect on speed through the water according to my results. This disproves my hypothesis as when the water temperature went down the boat went faster until the water temperature cooled past 25˚C, then the boat got slower again. FINA, the official international swimming body, requires competition pools to be kept at 25–28 °C. This supports my results because the boat went fastest at 25˚C. Having this information I then decided to retest the boat at much smaller temperature changes. By just dropping one degree I could test the speed at the optimum temperatures stated by FINA. These results proved that the fastest water temperature is 25˚C I believe, according to my results, the fastest pools to swim in are kept at a constant 25˚C. This is supported by my research with the official competition temperature being between 25-28˚C. Greerton pool is kept at 27˚C and Baywave at 25˚C. Swimming events can, and are often won by split seconds. A pool kept at 25˚C is the fastest to swim in and will attract top quality swimmers as it is the optimum temperature for racing.
 * CONCLUSION:**


 * LOG BOOK:**
 * 1) I was originally going to place my small metal boat into a long pipe which also had a string down the middle too make the boat go strait. But the small metal boat was to heavy and the pipe was too shallow. So therefore I couldn’t do my experiment in the long pipe, so i decided to do it in the bath.


 * 1) Because the small metal boat was to heavy I changed my mind and decided to make a bigger plastic boat in the tech room at Tauranga Intermediate. The boat I made was much lighter and worked much better.

method: we added the subsenes to water vinegar iodine litmus paper then found out the

results.

 Hypothesis:  Cornflower= A  Salt= B  Cream of tartar= E  Backing soda= D  Icing sugar= C

 Reflection: we got half of our hypothesis right these are the ones we guessed right cornflower= A salt= B cream of tartar= E icing sugar= C

__Thursday 5th may__

 **Test Your Dominant Side** We first tested Which eye do you use to wink with, witch hand you throw a ball with, Witch leg you jump off, Witch eye you look throw a tube with, witch hand you right with, witch foot you kick a ball with and witch hand you pick a cup up with and with all of these I used my right.

__Thursday 5th may__

 Spinning top experiment. We cut out a perfect circle on some card with the compass we then layered it with some paper to make it even thicker. Then we ruled each 3rd and colored them in with green, blue, and orange we then made a hole in the middle big enough for our pencils to fit through and not fall off. Last of all we span it like a spinning top and found the colour that it blended into, and the colour was grey.

__Monday 2 May 2011__

Gravity free water: We filled the white 10 by 8cm coffee cup up to the top with water then sealed the mouth of the cup with a small folded piece of card, we then flipped the cup over and then let go of the folded card. The gravity free water held the piece of card for an estimated time of 1 minute and 13 seconds. We tried this experiment a few times before we could get the time of 1 minute and 13 seconds.

Science Fair Due Friday 3 June Week 5 = = = __ Science Fair __ =

Please have a close read of the following site that Mr Marsh has put together. <span style="background-attachment: initial; background-clip: initial; background-color: initial; background-origin: initial; background-position: 100% 50%; background-repeat: no-repeat no-repeat; font-size: 17px; line-height: 25px; padding-right: 10px;">@http://ourspace.tauranga-int.school.nz/course/view.php?id=64

[|ScienceFairBooklet.pdf]
 * [[image:http://c1.wikicdn.com/i/mime/32/application/pdf.png height="32" caption="external image pdf.png" link="http://rimuroom42.wikispaces.com/file/view/ScienceFairBooklet.pdf"]] ||
 * external image pdf.png ||

Useful Science sites for ideas: <span style="background-attachment: initial; background-clip: initial; background-color: initial; background-origin: initial; background-position: 100% 50%; background-repeat: no-repeat no-repeat; font-size: 18px; padding-right: 10px;">@http://www.sciencebuddies.org/ <span style="background-attachment: initial; background-clip: initial; background-color: initial; background-origin: initial; background-position: 100% 50%; background-repeat: no-repeat no-repeat; font-size: 17px; line-height: 27px; padding-right: 10px;">@http://www.all-science-fair-projects.com/

Cool Science Sites <span style="background-attachment: initial; background-clip: initial; background-color: initial; background-origin: initial; background-position: 100% 50%; background-repeat: no-repeat no-repeat; font-size: 18px; padding-right: 10px;">@http://www.sciencelearn.org.nz/

====<span style="font-size: 1.066em; font-weight: normal; margin: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 5px;"><span style="font-size: 1.066em; font-weight: normal; margin: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 5px;"><span style="background-attachment: initial; background-clip: initial; background-color: initial; background-origin: initial; background-position: 100% 50%; background-repeat: no-repeat no-repeat; font-size: 18px; padding-right: 10px;">Please Note:  ==== ====<span style="font-size: 1.066em; font-weight: normal; margin: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 5px;"><span style="font-size: 1.066em; font-weight: normal; margin: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 5px;"><span style="background-attachment: initial; background-clip: initial; background-color: initial; background-origin: initial; background-position: 100% 50%; background-repeat: no-repeat no-repeat; font-size: 18px; padding-right: 10px;">This table is different from the one outlined in the above Science Fair booklet. There will be__**no extensions**__ given, Class time will be given for writing up aim, hypothesis, instructions, explanations, diagrams, tables etc and putting displays together. Parents please support your child with carrying out their experiments as this will be the main element of their homework during Science Fair. ====


 * ||  || <span style="display: block; font: normal normal normal 12px/normal Helvetica; letter-spacing: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; text-align: center;">**Order of Events** ||   || <span style="display: block; font: normal normal normal 12px/normal Helvetica; letter-spacing: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; text-align: center;">**Timeline** ||


 * <span style="font: normal normal normal 13px/normal Arial; letter-spacing: 0px; line-height: 19px; margin: 0px;">1 ||  || <span style="font: normal normal normal 14px/normal 'Times New Roman'; letter-spacing: 0px; line-height: 19px; margin: 0px;">Choose a topic including is it a //Science or Technology// display ||   || <span style="font: normal normal normal 12px/normal Helvetica; letter-spacing: 0px; margin: 0px;">Week 1 ||


 * <span style="font: normal normal normal 13px/normal Arial; letter-spacing: 0px; line-height: 19px; margin: 0px;">2 ||  || <span style="font: normal normal normal 14px/normal 'Times New Roman'; letter-spacing: 0px; line-height: 19px; margin: 0px;">Completed Aim and Hypothesis (science) or Question (technology) ||   || <span style="font: normal normal normal 12px/normal Helvetica; letter-spacing: 0px; margin: 0px;">Week 2 ||

<span style="font: normal normal normal 12px/normal 'Times New Roman'; line-height: 19px; margin: 0px;"><span style="font: normal normal normal 12px/normal Webdings; letter-spacing: 0px;"> //What do you need?// <span style="font: normal normal normal 12px/normal 'Times New Roman'; line-height: 19px; margin: 0px;"> <span style="font: normal normal normal 12px/normal Webdings; letter-spacing: 0px;"> //Who do you use?How many?// <span style="font: normal normal normal 12px/normal 'Times New Roman'; line-height: 19px; margin: 0px;"> <span style="font: normal normal normal 12px/normal Webdings; letter-spacing: 0px;"> //What help do you require?// <span style="font: normal normal normal 12px/normal 'Times New Roman'; line-height: 19px; margin: 0px;"> <span style="font: normal normal normal 12px/normal Webdings; letter-spacing: 0px;"> //How will you measure and collect data?// <span style="font: normal normal normal 12px/normal 'Times New Roman'; line-height: 19px; margin: 0px;"> <span style="font: normal normal normal 12px/normal Webdings; letter-spacing: 0px;"> //How many trials/experiments/prototypes will// //you complete?// <span style="font: normal normal normal 12px/normal 'Times New Roman'; line-height: 19px; margin: 0px;"> <span style="font: normal normal normal 12px/normal Webdings; letter-spacing: 0px;"> //How will you present data? Numbers are good!// <span style="font: normal normal normal 12px/normal 'Times New Roman'; line-height: 19px; margin: 0px;"> <span style="font: normal normal normal 12px/normal Webdings; letter-spacing: 0px;"> //Do you need to complete a Animal Ethics form?// ||   || <span style="font: normal normal normal 12px/normal Helvetica; letter-spacing: 0px; margin: 0px;">Week 2 ||
 * <span style="font: normal normal normal 13px/normal Arial; letter-spacing: 0px; line-height: 19px; margin: 0px;">3 ||  || <span style="font: normal normal normal 14px/normal 'Times New Roman'; letter-spacing: 0px; line-height: 19px; margin: 0px;">Planned how you are going to complete experiments (science) or investigation of needs assessment and prototype design (technology)


 * <span style="font: normal normal normal 13px/normal Arial; letter-spacing: 0px; line-height: 19px; margin: 0px;">4 ||  || <span style="font: normal normal normal 14px/normal 'Times New Roman'; letter-spacing: 0px; line-height: 19px; margin: 0px;">Start experiments (science) or needs assessment (technology) ||   || <span style="font: normal normal normal 12px/normal Helvetica; letter-spacing: 0px; margin: 0px;">Week 3 ||


 * <span style="font: normal normal normal 13px/normal Arial; letter-spacing: 0px; line-height: 19px; margin: 0px;">5 ||  || <span style="font: normal normal normal 14px/normal 'Times New Roman'; letter-spacing: 0px; line-height: 19px; margin: 0px;">Needs assessment (technology) completed ||   || <span style="font: normal normal normal 12px/normal Helvetica; letter-spacing: 0px; margin: 0px;">Week 3/4 ||


 * <span style="font: normal normal normal 13px/normal Arial; letter-spacing: 0px; line-height: 19px; margin: 0px;">6 ||  || <span style="font: normal normal normal 14px/normal 'Times New Roman'; letter-spacing: 0px; line-height: 19px; margin: 0px;">Experiments (science) and prototype testing (technology) completed ||   || <span style="font: normal normal normal 12px/normal Helvetica; letter-spacing: 0px; margin: 0px;">Week 3/4 ||


 * <span style="font: normal normal normal 13px/normal Arial; letter-spacing: 0px; line-height: 19px; margin: 0px;">7 ||  || <span style="font: normal normal normal 14px/normal 'Times New Roman'; letter-spacing: 0px; line-height: 19px; margin: 0px;">First draft completed ||   || <span style="font: normal normal normal 12px/normal Helvetica; letter-spacing: 0px; margin: 0px;">Week 4/5 ||


 * <span style="font: normal normal normal 13px/normal Arial; letter-spacing: 0px; line-height: 19px; margin: 0px;">8 ||  || <span style="font: normal normal normal 14px/normal 'Times New Roman'; letter-spacing: 0px; line-height: 19px; margin: 0px;">All written work, diagrams, tables, graphs, photos, and other graphics completed and checked by the class teacher**BEFORE** it is attached to the display ||   || <span style="font: normal normal normal 12px/normal Helvetica; letter-spacing: 0px; margin: 0px;">Week 5 ||


 * <span style="font: normal normal normal 13px/normal Arial; letter-spacing: 0px; line-height: 19px; margin: 0px;">9 ||  || <span style="font: normal normal normal 14px/normal 'Times New Roman'; letter-spacing: 0px; line-height: 19px; margin: 0px;">**Completed display ready to be marked by teacher** ||   || <span style="font: normal normal normal 12px/normal Helvetica; letter-spacing: 0px; margin: 0px;">Monday Week 6 ||