Science



**My Science Fair Project ↑**

**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: Great name Connor it really captures your attention. You have used a range of different materials which keeps your science fair interesting. Next time it would be great if you could come up with a accurate way of measuring the activity that took place, you have attempted this however because it is in a jar and you measured it using a ruler on the outside of the jar it is not very accurate. Maybe you could have put something in the jar that could have helped you measure it more accurately. Great to see that you have explained the science behind your results! Well done.**

**Student Comment:**

07/06/11 Science Fair 2011

__Introduction__:

Last summer I was shocked countless times by static electricity while bouncing on my trampoline at home and it made me wonder what materials conduct static electricity, so I am going to use an electroscope to find out what different materials conduct the most electricity and which ones don’t charge at all.

__Aim__:

My aim is to find out what material generates the most static electricity:- Vinyl, nylon fabric, balloon or wool.

__Hypothesis__:

I think that the balloon will generate the most static electricity because I know that when a balloon is charged electrically on your hair, your hair stands up. I assume that the Polar Fleece will generate the least amount of static because it is made out of plastic bottles.

__Materials__:

Gold Leaf Electroscope Wooden ruler Log Book Polar Fleece Balloon Vinyl Record Wool Tissue Paper

__Method__:


 * 1) Charge a test material e.g Balloon. Do this by either rubbing the balloon on your hair or by rubbing it on some clothing. The rubbing action causes static to charge in the balloon. To get the right amount of static you must rub the balloon very fast or it will not work.
 * 2) Making sure that the copper wire on the electroscope is not touching anything, gently but quickly tap the ballon to the wire on the electroscope and hold it there.


 * 1) As you touch the balloon to the wire you will notice that inside the jar the two foil leaves should have repelled each other.


 * 1) Measure the distance between the two foil leaves by placing the ruler beside the foil leaves that should be about half a centimeter away from the glass of the jar, to get the best possible accuracy with the measurement.


 * 1) Give the test a rating between 0 and 3 depending on the measurement using the key below and write it in your log book:


 * **Rating** || **Measurements** ||
 * 0 || No Activity ||
 * 1 || Small activity= 0-0.9 mm ||
 * 2 || Medium Activity= 1-1.9 cm ||
 * 3 || High Activity= 2+ cm ||

6. Test this with other materials exactly the same way as you have just been told e.g nylon, tin foil or wool.


 * 1) Compare your test results with the other materials tested and you should have a clear answer of what material conducts the most static electricity.

__Results__:


 * **Balloon** || **Results** ||
 * Test 1 || 2 ||
 * Test 2 || 1 ||
 * Test 3 || 3 ||
 * Test 4 || 2 ||
 * Test 5 || 1 ||


 * **Polar Fleece** || **Results** ||
 * Test 1 || 2 ||
 * Test 2 || 2 ||
 * Test 3 || 2 ||
 * Test 4 || 2 ||
 * Test 5 || 2 ||


 * **Wool** || **Results** ||
 * Test 1 || 0 ||
 * Test 2 || 0 ||
 * Test 3 || 0 ||
 * Test 4 || 0 ||
 * Test 5 || 0 ||


 * **Vinyl Record** || **Results** ||
 * Test 1 || 2 ||
 * Test 2 || 3 ||
 * Test 3 || 2 ||
 * Test 4 || 3 ||
 * Test 5 || 3 ||


 * **Tissue Paper** || **Results** ||
 * Test 1 || 0 ||
 * Test 2 || 0 ||
 * Test 3 || 0 ||
 * Test 4 || 0 ||
 * Test 5 || 0 ||

__Overall__: Overall the Vinyl Record had the most successful test results: Test 1 got 2, test 2 got 3, test 3 got 2, test 4 got 3 and test 5, 3.

The Polar Fleece got the second best results getting all 2s.

The Balloon had quite disappointing tests having the third best results: Test 1 got 2, test 2 got 1, test 3 got 3, test 4 got 2 and test 5, 1.

Both the Tissue Paper and the Wool got equal results of 0- no activity also getting the lowest results __Explanation__: A “Gold Leaf” Electroscope is an instrument for detecting the presence of static electricity. It is made of two thin tin foil leaves hanging off a metal hook tied on to a copper wire in a glass jar. When a material that has been charged with static electricity is brought near the copper wire, some of the electrons in the wire are pushed to the tin-foil leaves and they repel each other. The amount they open up depends on how large the charge of the material is (if the materials are always held at the same distance from the copper wire you should get a pretty accurate result).

__Conclusion__: I had quite good results with my testing and I am quite proud of myself for having finished all my testing in time. In the end my hypothesis was not correct in any way, it turns out that the Vinyl Record was the material that generates the most static electricity and both the Tissue Paper and the Wool generated the least amount of static electricity. I probably could have done better by getting more test materials or having more tests to get more accurate results, I would have done this if I had more time because I had to start again.

__This is an Electroscope:__



__12/05/2011__

Aim: To find out the correct substance out of A,B,C,D and E

Hypothesis: We think the following: A= Cornflour B= Salt C= Baking soda D= Cream of Tartar E= Icing Sugar We think that because of the smells.

Method:
 * 1) Put the substances one at a time in the beaker with a drop of water.
 * 2) Test each substance carefully. Remember to test the blue and red litmus paper and the iodine.
 * 3) Compare your results with the hints on the board and check your answers

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__Chromatography__ __11/05/11__

**L.I** I am learning the process of the chromatography and use this <span style="color: #b9160e; font: normal normal normal 13px/normal 'Comic Sans MS'; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">to assist with solving the crime.

<span style="color: #0045a3; font: normal normal normal 13px/normal 'Comic Sans MS'; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">**Aim:** To use chromatography to distinguish which pen was used in the ransom note.

<span style="color: #0045a3; font: normal normal normal 13px/normal 'Comic Sans MS'; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">**Hypothesis:** I think that the black felt pen is the ransom note pen because when I looked at the note the writing looked black.

<span style="color: #0045a3; font: normal normal normal 13px/normal 'Comic Sans MS'; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">**Equipment** - Beaker, felt pens, ransom note, filter paper, water, hand lens, masking tape and straws.

<span style="color: #0045a3; font: normal normal normal 13px/normal 'Comic Sans MS'; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">**Method:**

<span style="color: #0045a3; font: normal normal normal 13px/normal 'Comic Sans MS'; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">1. Gather samples of pens. <span style="color: #0045a3; font: normal normal normal 13px/normal 'Comic Sans MS'; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">2. Draw a line across a strip of filter paper, 1-4cm from the bottom. <span style="color: #0045a3; font: normal normal normal 13px/normal 'Comic Sans MS'; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">3. Attach to straw with masking tape. <span style="color: #0045a3; font: normal normal normal 13px/normal 'Comic Sans MS'; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">4. Put filter paper in beaker, making sure the ink is at least 1-2cm above <span style="color: #0045a3; font: normal normal normal 13px/normal 'Comic Sans MS'; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">the water. <span style="color: #0045a3; font: normal normal normal 13px/normal 'Comic Sans MS'; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">5. Observe. <span style="color: #0045a3; font: normal normal normal 13px/normal 'Comic Sans MS'; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">6. Remove filter when water has travelled about 3/4 of the way up the strip. <span style="color: #0045a3; font: normal normal normal 13px/normal 'Comic Sans MS'; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">7. Compare results with the ransom note results

<span style="color: #0045a3; font: normal normal normal 12px/normal 'Comic Sans MS'; letter-spacing: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">**Results:**

When we did the experiment it turns out that the green bic © pen was the one that we all thought was the ransom note pen. We thought that the most unlikely pen was the ballpoint pen because it was not the right colour, it was to thin and it was running out of ink, whereas the green bic© pen has a very thick tip.

<span style="font: normal normal normal 12px/normal Helvetica; letter-spacing: 0px; margin: 0px;">__Chromatography__ <span style="font: normal normal normal 12px/normal Helvetica; letter-spacing: 0px; margin: 0px;">__11/05/11__

<span style="font: normal normal normal 13px/normal Arial; letter-spacing: 0px; line-height: 19px; margin: 0px;">**L.I** I am learning the process of the chromatography and use this <span style="font: normal normal normal 13px/normal Arial; letter-spacing: 0px; line-height: 19px; margin: 0px;">to assist with solving the crime.

<span style="font: normal normal normal 13px/normal Arial; letter-spacing: 0px; line-height: 19px; margin: 0px;">**Aim:** To use chromatography to distinguish which pen was used in the ransom note.

<span style="font: normal normal normal 13px/normal Arial; letter-spacing: 0px; line-height: 19px; margin: 0px;">**Hypothesis:** I think that ......................because..............

<span style="font: normal normal normal 13px/normal Arial; letter-spacing: 0px; line-height: 19px; margin: 0px;">**Equipment** - Beaker, felt pens, ransom note, filter paper, water, hand lens, masking tape and straws.

<span style="font: normal normal normal 13px/normal Arial; letter-spacing: 0px; line-height: 19px; margin: 0px;">**Method:**

<span style="font: normal normal normal 13px/normal Arial; letter-spacing: 0px; line-height: 19px; margin: 0px;">1. Gather samples of pens. <span style="font: normal normal normal 13px/normal Arial; letter-spacing: 0px; line-height: 19px; margin: 0px;">2. Draw a line across a strip of filter paper, 1-4cm from the bottom. <span style="font: normal normal normal 13px/normal Arial; letter-spacing: 0px; line-height: 19px; margin: 0px;">3. Attach to straw with masking tape. <span style="font: normal normal normal 13px/normal Arial; letter-spacing: 0px; line-height: 19px; margin: 0px;">4. Put filter paper in beaker, making sure the ink is at least 1-2cm above <span style="font: normal normal normal 13px/normal Arial; letter-spacing: 0px; line-height: 19px; margin: 0px;">the water. <span style="font: normal normal normal 13px/normal Arial; letter-spacing: 0px; line-height: 19px; margin: 0px;">5. Observe. <span style="font: normal normal normal 13px/normal Arial; letter-spacing: 0px; line-height: 19px; margin: 0px;">6. Remove filter when water has travelled about 3/4 of the way up the strip. <span style="font: normal normal normal 13px/normal Arial; letter-spacing: 0px; line-height: 19px; margin: 0px;">7. Compare results with the ransom note results

=Thursday 5th May= = = =<span style="font-family: Tahoma,Geneva,sans-serif; font-size: 12px; line-height: normal;">The no gravity effect comes from the air pressure on the outside being stronger than the pressure on the inside of the cup, thus sucking the cardboard upwards and keeping the water inside the cup. =

<span style="font: normal normal normal 24px/normal Georgia; letter-spacing: 0px; line-height: 27px; margin: 0px;">Color Disc Spinning Top

<span style="font: normal normal normal 24px/normal Georgia; letter-spacing: 0px; line-height: 27px; margin: 0px;">The Color Disc Spinning Top works by the spinning motion making it look like the colours Are mixing and forming another colour witch in this case is a sort of white colour