Science Skills
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?
What fingerprints are made up of that helps us identify the person
What are ridges?
Using characteristics like absorbency and flammability to test this type of evidence
What is fabric analysis?
When the scientist uses his/her senses to record what is happening in an experiment.
What is an observation?
Footprints that contain mud, sand, dirt, snow...
What are trace materials?
Dividing prints into loop, whorl, arch, or composite
What is categorizing prints?
the term used for knowing if someone is lying
what is their tells?
The manipulated variable in a chromotography experiement
What is the pen ink samples?
The steps involved in carrying out an experiment or test.
What is a procedure?
A footprint characteristic that can tell you whether the person was running or walking.
What is stride length?
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?
The experiment done to match an ink sample with a suspects ink sample
What is a chromatography experiment?
The responding variable in a chromotography experiment
What is the separation of ink (colour and attractiveness to water)?
Completed at the beginning of a test or experiment - helps to connect what the scientist already knows about the question.
What is a hypothesis?
A design on the bottom of a shoe.
What is a tread pattern?
Fingerprints match when they have this many common characteristics
What is 8?
Statements that investigators get from people who may have been involved in, or know about a crime
What are witness statements?
The word for handwriting analysis
What is graphology?
The variables in an experiment that are kept the same.
What are control or constant variables?
A chart used to identify and separate different types of shoes. This can also be used for other applications.
What is a dichotomous key?
This is what causes our fingerprint pattern to transfer onto objects we touch
What is oil, perspiration, and amino acids?
pH is a characteristic of soil that can found using this test
What is a Bromothymol blue test?
A black pen would result in this (these) colours in a chromatography experiment
What is all colours?