Science Skills
Footprints
Fingerprints
Other Evidence
Ink and Writing Analysis
100
An educated guess as to what happened
What is an inference?
100
The size of a footprint can be a good indication of this unless you are examining younger people.
What is the height of a person?
100
What fingerprints are made up of
What are ridges?
100

What are 3 pieces of evidence of animal activity? 

What are tracks, trails, nests, burrows, fur, scat, urine, and feathers 

100
3 characteristics of a persons writing that can be analyzed
What is line quality, spacing, ratio of height width and size, pen lifts and separations, connecting strokes, beginning and ending strokes, unusual letter formation, pen pressure, slant, baseline habits, flourishes or embellishments, placement of diacritics (t's or i's)?
200
When the scientist uses his/her senses to record what is happening in an experiment.
What is an observation?
200

This tells us the size and general pattern of the shoe and will be the same for all shoes of this type. 

What is class characteristics? 

200

The 3 types of prints 

What are arch, loop and whorl? 

200

When investigators look at a set of tire tracks, they might look for these characteristics

What are uneven wear, unusual markings, and soil left in tracks? 

200
The manipulated variable in a chromotography experiement
What is the pen ink samples?
300
The variable you are measuring or observing in an experiment

What is responding variable? 

300

A footprint characteristic that can tell you whether the person was running or walking.

What is stride length?

300
A fingerprint pattern in which the ridges start on one side of the finger and finish on the other side of the finger.
What is an arch?
300
The experiment done to match an ink sample with a suspects ink sample
What is a chromatography experiment?
300
The responding variable in a chromotography experiment
What is the separation of ink (colour and attractiveness to water)?
400

The variable you are changing in an experiment 

What is a manipulated variable? 

400
A design on the bottom of a shoe.
What is a tread pattern?
400

The print that has ridges that enter and exit from the same side 

What is a loop? 

400

Different types of fabrics can be classified using the following properties: (pick 2) 

What are Stretchability , Weight, Absorbency - does water roll off or absorb into, Color  - different pigments & if the colour bleeds, Reaction to heat/buring - does it melts? Turn to ash, Texture - does it look smooth or fuzzy, Weaving Pattern




400
The word for handwriting analysis
What is graphology?
500
The variables in an experiment that are kept the same.
What are control or constant variables?
500

A chart used to identify and separate different types of shoes. This can also be used for other applications.

What is a dichotomous key?

500

25-35 % of fingerprints are this type. 

What is whorl? 

500

The three types of movement animals make (walking patterns) 

What are walkers, hoppers, and trotters? 

500

Acrylic, nylon and polyester are examples of this type of fiber. 

What are synthetic or man-made fibers? 

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