Science and Technology

1
Science and Technology

• Science is the process of seeking an
  understanding of underlying principles of nature.
  Science involves two facets
• Technological (or factual) and philosophical (or
  theoretical).
• Technology is the direct application of knowledge
  to solve problems.
• Science grew out of natural philosophy or the
  philosophical speculation of nature

2
Science

• Scientific laws are descriptions of natural
  phenomenon. (Law of Gravity, Law of Conservation
  of Mass/Matter)
• Many scientific laws can be stated
  mathematically.
• i.e., Boyles Law (PV k)

3
Science

• A scientific theory is a set of tested hypotheses
  that explain natural phenomena. Scientific
  theories are the best current explanation for
  natural phenomena. Theories are always tentative
  and may change as observations of nature change.

4
Science

• Scientific models are tangible items or pictures
  used to represent invisible processes.

5
Limitations of Science

• Science is limited to studying that which is
  observable, and natural processes in which
  variables can be controlled.

6
Science and Technology Risks and Benefits

• Science and technology are interrelated. They
  involve both risks and benefits.
• Risk-benefit analysis involves an estimation
  called the desirability quotient (DQ).
• DQ Benefit
• Risks

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What is Chemistry? Definition Chemistry is the
study of matter and its changes from one
substance to another. Chemistry is central to
all sciences and overlaps with physics, biology,
geology, and astronomy. Learning about chemistry
teaches you about the benefits and risks
associated with chemicals and will help you to be
an informed citizen and make intelligent choices
concerning the world around you. Chemistry
teaches you to solve problems and communicate
with others in an organized and logical manner.
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Chemistry is called the central science as the
next two slides illustrate.
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Paleontology
Biology
Medicine
Biophysics
Biochemistry
Geochemistry
Chemistry
Physics
Geology
Physical Chemistry
Chemical Engineering
Nuclear Chemistry
Cosmo chemistry
Astrophysics
Astronomy
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AGRICULTURE
COSMETICS
MATERIAL SCIENCE
ANIMAL SCIENCE
ART
CHEMISTRY
TOXICOLOGY
ENVIRONMENTAL CHEMISTRY
APPLIED HEALTH TECHNOLOGY
MEDICINE
FIRE SCIENCE
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• Major Chemistry subdivisions
• Analytical (qualitative and quantitative)
  Chemistry
• Qualitative Analytical Chemistry What is a
  sample of matter composed of?
• Quantitative Analytical Chemistry How much
  stuff is in a sample of matter?
• Physical Chemistry
• The study of the physics involved with chemical
  changes.
• Organic Chemistry
• The study of properties and reactions of
  compounds that contain Carbon
• Inorganic Chemistry
• The study of properties and reactions of
  compounds that are not Carbon based
• Biochemistry
• The study of living systems (Biology Chemistry)

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• Major Hints in being a successful Chemistry
  Student
• Study Everyday!! A 5 unit class requires at least
  10 hours/week of study time to earn a C
• Dont fall behind you will never catch up!!!
• Always ask for help when you need it dont
  wait.
• Working in groups is very helpful IF you have the
  right group!!!
• Read the chapter and/or online lecture notes
  before class to familiarize yourself with the
  material.