Central Regional High School
Hair and Fiber
Lets go back
and review your
Structure of Nuclear DNA
Forensic Science - in its broadest definition is
the application of science to law
Forensic Scientists offer the knowledge and
technology of science for the definition and
enforcement of laws
Forensic Science cannot offer final and
LOOKING FOR THE PRINTS
The first step in footwear evaluation is
obviously finding a print
Very often this is initially overlooked by
the crime scene investigator
By the time a footwear impression is
searched for, the crime scene is
HAIR AND FIBER
Among the most common types of physical evidence
Hair is class evidence
Best case scenario: Human head hair has odds of 4500 to 12 of
originating from the same person (0.0022%)
Pubic hair has even better odds of 800 to 1.3
Although typewriter analysis is a shrinking field, there
are a few experts left in the world
You may wonder in the technological world we live in ,
why there are any left at all.
As with shoes, all typewriters of a
The Basics of Firearms
Types of Firearms
Any instrument or device assembled from some type of barrel
With some type of action
From which a projectile is propelled by the products of the
explosion of gunpowder is considered a firearm
10 Basic Steps in an Investigation
1- Approach scene
2- Secure and protect scene
3- Initiate preliminary survey/determine scene boundaries. Establish
possibility of secondary CS
4- Prepare narrative description
Upwelling and Human Economics
As you've learned throughout your reading, the marine environment can have a
direct effect on what you do and how you live. The activities of surfers, for
example, are dictated by the
Gray whales (Eschrichtius robustus) probably migrate farther than any other marine mammal.
They journey between feeding and breeding grounds and cross national
Navigating in the Middle Ages
The compass revolutionized navigation during the Middle Ages, and remains,
along with a chart, the most important tool for navigation in the absence of a GPS
satellite receiver. Still,
Making a Coastal Ecosystem Diorama
The amount of diversity of life forms and habitats on this planet boggles the mind.
Indeed, it has been boggling the minds of scientists and naturalists for centuries.
It was Aris
Elodea and Photosynthesis
Photosynthetic organisms (cyanobacteria) first evolved about 3.5 billion years
ago and are the oldest known fossils on Earth. Cyanobacteria live in water, can
manufacture their own food, a
a) The Nature of Life
(1) Living things are
made of 13 of the 118
(i) C, N, O, H account
for 99% of the mass
of living things.
(2) Energy is defined as
the ability to do work.
(i) First Law of
energy cannot be
destroyed or created
NOTE: The instructions for each group are different so please read these carefully, and
make sure you have the correct instructions for your group.
Your group should have a BLUE marking pen and ONE TRANSPARENCY paper with a
Chapter 4 - Lab/Activity #2
Energy From the Sun
You learned from your textbook reading that all energy for living things is
obtained from external sources. At the very bottom of the marine food chain are
Chapter 5 - Lab/Activity
There are many types of mollusks. They live in many diverse parts of the earth
and though they share similar characteristics they have taken on many diverse
forms. There are over 100,
Chapter 5 - Lab/Activity #8
Class Osteichthyes, the bony fish makes up most of the vertebrate species in the
ocean. In fact bony fish account for about half of all vertebrate species on Earth.
Chapter 5 - Lab/Activity #9
Whale Classification and Controversy
Whales are among the largest animals on the Earth. Marine mammals have
adapted to master the challenges of living in the seas all over the world. Thi
Chapter 5 - Lab/Activity #7
Shark and Ray Classification
Sharks and rays have adapted successfully to the marine environment. They are
at the top of the food web. Their health as a group is a good indication of the
Marine Vertebrate Review sheet
List the characteristics of jawless fish and give an example.
List the characteristics of Boney fish and give an example.
List characteristics of cartilaginous
Ch 5 test review
1. What is taxonomy?
2. What are the three domains?
3. Describe how a sponge feeds
4. List the characteristics of Cnidaria and list organisms found in the phylum.
5. List the characteristics of Mollusks and list organi
Problem: What is phytoplankton? How does phytoplankton effect the marine
slides of diatoms, algae, plankton
1. Collect all materials
2. Use the microscope under low
A. How scientists work
1. Designing an experiment
a. Ask a question - how do new
organisms come to live
b. Form a hypothesis spontaneous
generation the idea that living things
can develop from none living things
c. Set up a controlled experiment (see
A. What is science?
1. Science is an organized way of using evidence
to learn about the natural world.
a. The goal of science is to investigate and
understand the natural world to explain event
in the natural world and to use those
explanations to make us
Careful observation is important in any science. The results you obtain from an
experiment must be replicable. Detailed observation and notes not only help to identify
possible areas of error, but also allow others to duplicate, and ve