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What is science?
What is the best method to learn science?
What is a hypothesis?
What is a scientific theory?
What is a scientific law?
What is included in science?
Types of science investigations
What is science?

Science is a systematic enterprise that builds and organizes knowledge in the form of testable explanations and predictions about the universe.

Knowledge, especially that gained through experience.

Science is a process for learning about the natural world, and also the knowledge generated through this process.

Science is the concerted human effort to understand, or to understand better, the history of the natural world and how the natural world works, with observable physical evidence as the basis of that understanding.

Science has many branches, such as physical science, earth science, and life science. Life science is the study of living things -plants and animals. It helps to explain how living things relate to one another and to their surroundings.

What do humans know up to now about the universe?
Here are further guidelines.

What is the best method to learn science?
Learn about the manufacture of products useful to human being.
Learn about the human body: its diagnosis and treatment.
Learn about earth sciences or the environment around human beings.
What is a hypothesis?

A hypothesis is an idea or proposition that can be tested by observations or experiments, about the natural world. In order to be considered scientific, hypotheses are subject to scientific evaluation and must be falsifiable, which means that they are worded in such a way that they can be proven to be incorrect.

The hypothesis he formed based on his observations included the following:
1. In the organism there is a pair of factors that controls the appearance of a given characteristic.
2. The organism inherits these factors from its parents, one from each.
3. Each is transmitted from generation to generation as a discrete, unchanging unit.
4. When the gametes are formed, the factors separate and are distributed as units to each gamete. (This statement is also known as Mendel's rule of segregation.)
5. If an organism has two unlike factors for a characteristic, one may be expressed to the total exclusion of the other.

What is a scientific theory?

To scientists, a theory is a coherent explanation for a large number of facts and observations about the natural world.

A theory is:

* Internally consistent and compatible with the evidence
* Firmly grounded in and based upon evidence
* Tested against a wide range of phenomena
* Demonstrably effective in problem-solving

In popular use, a theory is often assumed to imply mere speculation, but in science, something is not called a theory until it has been confirmed over many independent experiments. Theories are more certain than hypotheses, but less certain than laws. The procedures and processes for testing a theory are well-defined within each scientific discipline.

What is a scientific law?

A scientific law is a description of a natural phenomenon or principle that invariably holds true under specific conditions and will occur under certain circumstances.

Science can investigate all sorts of questions:
* When did the oldest rocks on earth form?

What causes gravity?
How do our brains store memories?
How do water molecules interact with each other? * What causes Jupiter's red spot?
* How does smog move through the atmosphere?

What is included in science?
Applied science
Formal sciences (Mathematics)
Life sciences (Biology:plants, animals, and human beings)
Physical sciences
Social sciences
Earth science
The Different Fields of Science

This is just a partial listing of some of the many, many different possible fields of study within science. Many of the fields listed here overlap to some degree with one or more other areas.

Natural Sciences


* Anatomy
* Astrobiology
* Biochemistry
* Bioinformatics
* Biophysics
* Botany
* Cell biology
* Developmental biology
* Ecology
* Entomology
* Epidemiology
* Evolution (Evolutionary biology)
* Freshwater Biology
* Genetics
* Immunology
* Marine biology
* Microbiology
* Molecular Biology
* Morphology
* Neuroscience
* Physical anthropology
* Physiology
* Population dynamics
* Structural biology
* Taxonomy
* Toxicology
* Virology
* Zoology


* Analytical chemistry
* Biochemistry
* Computational chemistry
* Electrochemistry
* Inorganic chemistry
* Materials science
* Organic chemistry
* Polymer chemistry
* Physical chemistry
* Quantum chemistry
* Spectroscopy
* Stereochemistry
* Thermochemistry


* Acoustics
* Astrodynamics
* Astronomy
* Astrophysics
* Biophysics
* Classical mechanics
* Computational physics
* Condensed matter physics
* Cryogenics
* Dynamics
* Fluid dynamics
* High Energy Physics
* Materials physics
* Mechanics
* Nuclear physics
* Optics
* Particle physics
* Plasma physics
* Polymer physics
* Quantum mechanics
* Solid State physics
* Thermodynamics

Earth Science

* Environmental Science
* Geodesy
* Geography
* Geology
* Hydrology
* Meteorology
* Oceanography
* Paleontology
* Seismology

A new classification scheme of science fields and subfields designed for scientometric evaluation purposes

Agricultural Science & Technology
Animal Sciences
Anatomy & Pathology
Aquatic Sciences
Applied Mathematics
Astronomy & Astrophysics
Applied Physics
Atomic, Molecular & Chemical Physics
Analytical, Inorganic & Nuclear Chemistry
Applied Chemistry & Chemical Engineering
Age & Gender Related Medicine
Arts & Literature

Biomaterials & Bioengineering
Biochemistry/Biophysics/Molecular Biology

Cell Biology
Classical Physics
Computer Science/Information Technology

Environmental Science & Technology
Electrical & Electronic Engineering
Energy & Fuels
Education & Information

Food & Animal Science & Technology Language & Culture

Geosciences & Technology
General & Traditional Engineering
Genetics & Developmental Biology
General, Regional & Community Issues

Human health care
History, Politics & Law

Materials Science
Multidisciplinary Physics
Multidisciplinary Chemistry
Multidisciplinary Biology
Mathematical & Theoretical Physics
Meteorology/Atmospheric & Aerospace Science & Technology
Mineralogy & Petrology

Organic & Medicinal Chemistry

Plant & Soil Science & Technology
Plant Sciences
Pure & Applied Ecology
Pharmacology & Toxicology
Particle & Nuclear Physics
Physics of Solids, Fluids And Plasmas
Physical Chemistry
Polymer Science
Pure Mathematics
Philosophy & Religion

Veterinary Sciences

What are various types of Investigations?
Types of science investigations
Comparative investigations
Experimental investigations
Descriptive Investigation:

Clinical trial, an investigation conducted to collect data for new drugs or devices
Discovery (observation)
Investigations relevant to abilities/skills, professions, products, subjects, or services.
    Research method
    Naturalistic observation
    Questionnaire survey
Tests and scans done to help with the diagnosis or management of a disease (see: medical test), although investigation may also refer to the general diagnostic process.
Medical investigations
Medical Procedures
Research that becomes criminal investigation findings.
Scientific investigations

Here are further guidelines.