CSI

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Learning Intentions:

1. To become familiar with //chromatography// and be able to apply it to 'real life' situations.

2. To perform 'fair tests' in Science identifying substances and fibres.

3. Identify and group fingerprintsinto 3 main categories: Arch, Loop and Whorl.

4. Set up and carry out Scientific Experiments following the correct process of; Aim, Equipment, Hypothesis, Method, Results and Conclusion.

5. Work collaboratively with peers to solve problems using the skills learnt.

Lesson One - Paper Chromatography

Chromatography is a technique used for seperating mixtures. In all of the variations of Chromatography, a substance is placed onto or into a medium and then a solvent passes through the test substance, some of the test substance may be attracted to the solven and follow it up in the medium. Different types of molecules are transported different distances, causing them to seperate. In these activities, filter paper is the medium, solvent is the solvent and black ink is the test substance. Chromatography is used in crime labs to seperate the components of 'clue' substances such as blood, ink or other mixtures found at the scene of a crime. Chromatograms of these clue substances are then compared with those of the suspected sources.

__Chromatography Monday 9th May 2011__

__L.I__ I am learning the process of the chromatography and use this to assist with solving the crime.

__Aim:__ To use chromatography to distinguish which pen was used in the ransom note.

<span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">__Hypothesis:__ I think that the black marker is the one what the one that was written with because its the right thickness of the letters and the right shade of black.

<span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">Black marker x5 <span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">Casade marker x14 <span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">Sharpie x3 <span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">Vivid x4

<span style="font: normal normal normal 16px/normal Arial; 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="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">Method:

<span style="font: normal normal normal 16px/normal Arial; 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="font: normal normal normal 16px/normal Arial; 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="font: normal normal normal 16px/normal Arial; 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="font: normal normal normal 16px/normal Arial; 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="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">the water. <span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">5. Observe. <span style="font: normal normal normal 16px/normal Arial; 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="font: normal normal normal 16px/normal Arial; 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="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">Results - <span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">1. Black Ballpoint Pen <span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">2. Vivid <span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">3. Cascade marker √ <span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">4. Sharpie <span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">5. Black marker

<span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">Reflection - The cascade marker was the one which was used to write the note.

<span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">__Lesson Three - Kitchen Chaos Wednesday 11 May 2011:__

<span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">The kitchen cupboard has got very damp and the labels have fallen off some <span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">of the containers. From the label scraps it is found that there is:

<span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">Icing sugar <span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">baking soda <span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">salt <span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">cream of tartar <span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">cornflour

<span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">TASK - Make order out of chaos

<span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">Use a series of simple tests and good observations to find out what substance is in <span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">each container.

<span style="color: #009f00; font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">Caution: You are not allowed to taste them! Please use small quantities.

Aim: to find out what the substance is by carrying out a series of simple tests.

<span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">Hypothesis: <span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">I think that the substance in the different containers is;

<span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">Substance A - Corn flour <span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">Substance B - Cream of tartar <span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">Substance C - Baking soda <span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">Substance D - Salt <span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">Substance E - Icing sugar

<span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">Equipment - Five containers with the different substances labelled A, B, C, D, E. <span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">- Eyedroppers <span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">- Vinegar <span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">- Magnifying Glass <span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">- Litmus Paper (red and blue) <span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">- Iodine

<span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">CLUES TO HELP YOU.......................

<span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">1. Cream of tartar is an acid, and turns blue litmus paper red. <span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">2. Cornflour and sugar are neutral and don't affect litmus paper. <span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">3. Salt and bicarbonate of soda are alkaline, that is they turn red litmus paper blue <span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">4. Bicarbonate of soda fizzes when mixed with vinegar. <span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">5. Iodine changes from yellow-brown to blue-black with cornflour. <span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">There are many different ways of telling the differences between substances. <span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">You could:
 * <span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">Smell them carefully.
 * <span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">Compare the way they dissolve in water.
 * <span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">Examine with a magnifying glass.
 * <span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">Test the acidity with litmus paper.
 * <span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">Test the reaction with vinegar and iodine.

<span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">Results: <span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">Substance A is cream of tartar Substance B is corn flour <span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">Substance C is icing sugar Substance D is salt <span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">Substance E is baking soda

<span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">__Lesson 3 - Fossicking for Fuels Friday 13 April 2011:__

<span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">__Aim:__ to determine properties of different fibres/materials.

<span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">(Record your results on the sheet provided then glue this into your Science book.)

<span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">__Equipment:__ <span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">1. 3 different types of material. <span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">2. 2 beakers <span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">3. 3 test tubes <span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">4. Force meter (spring balance) <span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">5. Ruler <span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">6. Felt pen <span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">7. Magnifying glass <span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">8. Tongs <span style="font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">9. Candle

<span style="color: #000100; font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">THE TESTS

<span style="color: #000100; font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">TASK ONE - HOW MANY FIBRES ARE THERE IN THE MATERIAL?

<span style="color: #000100; font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">TASK TWO - WHICH MATERIAL IS THE STRONGEST?

<span style="color: #000100; font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">TASK THREE - WHICH FIBRES SOAK UP THE MOST WATER?

<span style="color: #000100; font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">TASK FOUR - HOW DO THE MATERIALS BURN?

<span style="color: #000100; font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">TASK FIVE - WHICH MATERIALS STRETCH THE MOST?

<span style="color: #000100; font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">(Record results on the sheet provided)

<span style="color: #000000; font-family: arial,helvetica,sans-serif; font-size: 13px; font: normal normal normal 26px/normal Chalkboard; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">Lesson Four - Finger Prints __Wednesday 18 May 2011__:

<span style="color: #000000; font-family: arial,helvetica,sans-serif; font-size: 13px; font: normal normal normal 26px/normal Chalkboard; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;"> Every person's fingerprint are as different as each person. The use <span style="color: #000000; font-family: arial,helvetica,sans-serif; font-size: 13px; font: normal normal normal 26px/normal Chalkboard; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;"> of fingerprints is very important for the police whose only evidence at <span style="color: #000000; font-family: arial,helvetica,sans-serif; font-size: 13px; font: normal normal normal 26px/normal Chalkboard; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;"> a robbery might be the fingerprints left by the thief. Police keep a <span style="color: #000000; font-family: arial,helvetica,sans-serif; font-size: 13px; font: normal normal normal 26px/normal Chalkboard; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;"> record of fingerprints of criminals in banks of computers.

<span style="color: #000000; font-family: arial,helvetica,sans-serif; font-size: 13px; font: normal normal normal 26px/normal Chalkboard; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;"> Different types of Prints

<span style="color: #000000; font-family: arial,helvetica,sans-serif; font-size: 13px; font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;"> <span style="font: normal normal normal 26px/normal Chalkboard; line-height: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; overflow-x: hidden; overflow-y: hidden;"> <span style="color: #000000; font-family: arial,helvetica,sans-serif; font-size: 13px; font: normal normal normal 16px/normal Arial; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;"> Loop Whorl Arch

<span style="color: #000000; font-family: arial,helvetica,sans-serif; font-size: 13px; font: normal normal normal 28px/normal Chalkboard; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;"> __Your Fingerprints__

<span style="color: #000000; font-family: arial,helvetica,sans-serif; font-size: 13px; font: normal normal normal 26px/normal Chalkboard; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;"> Equipment - Pencil, Paper, Sticky tape, Magnifying glass.

<span style="color: #000000; font-family: arial,helvetica,sans-serif; font-size: 13px; font: normal normal normal 26px/normal Chalkboard; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;"> Method <span style="color: #000000; font-family: arial,helvetica,sans-serif; font-size: 13px; font: normal normal normal 26px/normal Chalkboard; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;"> 1. Rub the side of a pencil lead back and forth on a sheet of paper to build <span style="color: #000000; font-family: arial,helvetica,sans-serif; font-size: 13px; font: normal normal normal 26px/normal Chalkboard; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;"> up the black area large enough to take 10 prints. <span style="color: #000000; font-family: arial,helvetica,sans-serif; font-size: 13px; font: normal normal normal 26px/normal Chalkboard; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;"> 2. Press one of your fingertips firmly onto the black. Place the sticky side of a <span style="color: #000000; font-family: arial,helvetica,sans-serif; font-size: 13px; font: normal normal normal 26px/normal Chalkboard; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;"> piece of tape over your fingertip. (You may need a friend to help you with this.) <span style="color: #000000; font-family: arial,helvetica,sans-serif; font-size: 13px; font: normal normal normal 26px/normal Chalkboard; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;"> 3. Tape the print to the correct location on the fingerprint form. <span style="color: #000000; font-family: arial,helvetica,sans-serif; font-size: 13px; font: normal normal normal 26px/normal Chalkboard; letter-spacing: 0px; line-height: 19px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;"> 4. Using the magnifying <span style="font-family: arial,helvetica,sans-serif; font-size: 13px; line-height: 19px;"><span style="font: normal normal normal 26px/normal Chalkboard; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">glass compare your prints to the pictures above and try to label them as either arches, loops or whorls.

<span style="color: #000000; font-family: Chalkboard; font-size: 26px; font: normal normal normal 26px/normal Chalkboard; letter-spacing: 0px; line-height: normal; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">Thumb - Whole <span style="color: #000000; font-family: Chalkboard; font-size: 26px; font: normal normal normal 26px/normal Chalkboard; letter-spacing: 0px; line-height: normal; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">Index - Arch <span style="color: #000000; font-family: Chalkboard; font-size: 26px; font: normal normal normal 26px/normal Chalkboard; letter-spacing: 0px; line-height: normal; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">Middle - Arch <span style="color: #000000; font-family: Chalkboard; font-size: 26px; font: normal normal normal 26px/normal Chalkboard; letter-spacing: 0px; line-height: normal; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">Ring - Loop <span style="color: #000000; font-family: Chalkboard; font-size: 26px; font: normal normal normal 26px/normal Chalkboard; letter-spacing: 0px; line-height: normal; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">Little - Loop