Complexity to Reflexivity: Underlying Logics Used in Science
Science and Technology Science is the process of seeking an understanding of underlying principles...
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Transcript of Science and Technology Science is the process of seeking an understanding of underlying principles...
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).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
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., Boyle’s Law (PV = k)
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.
Science
Scientific models are tangible items or pictures used to represent invisible processes.
Limitations of Science
Science is limited to studying that which is observable, and natural processes in which variables can be controlled.
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
What is Chemistry?
Definition:Definition: Chemistry is the study of matter and its Chemistry is the study of matter and its changes from one substance to another.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.
Chemistry is called the central science as the next two slides
illustrate.
ChemistryChemistry
Chemical Engineering
Biochemistry
BiologyBiology
Medicine
PhysicsPhysics
AstronomyAstronomy
GeologyGeology
Biophysics
Physical Chemistry
NuclearChemistry
AstrophysicsCosmo chemistry
Geochemistry
Paleontology
CHEMISTRYCHEMISTRY
MATERIALSCIENCE
AGRICULTURECOSMETICS
ANIMAL SCIENCE
ART
ENVIRONMENTALCHEMISTRY
FIRESCIENCE
APPLIEDHEALTH
TECHNOLOGY
MEDICINE
TOXICOLOGY
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)
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”
Don’t fall behind – you will never catch up!!!
Always ask for help when you need it – don’t 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.