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Ck 12: Physical Science: Scientific Law
[Free Registration/Login may be required to access all resource tools.] Nature of scientific laws, examples of physical science laws, and how scientific laws differ from scientific theories.
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Ck 12: Physical Science: Potential Energy
[Free Registration/Login may be required to access all resource tools.] Definition of potential energy, gravitational potential energy, elastic potential energy and other forms of potential energy.
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Ck 12: Physical Science: Atomic Nucleus
[Free Registration/Login may be required to access all resource tools.] The nucleus of an atom and what holds it together.
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Ck 12: Life Science: Human Population
[Free Registration/Login may be required to access all resource tools.] How quickly is the human population growing? If we look at worldwide human population growth from 10,000 BCE through to today, our growth looks like exponential...
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Ck 12: Physical Science: Bond Polarity
[Free Registration/Login may be required to access all resource tools.] Polarity and covalent bonds.
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Ck 12: Life Science: Mass Extinctions
[Free Registration/Login may be required to access all resource tools.] An organism goes extinct when all of the members of a species die out and no more members remain. Extinctions are part of natural selection. Species often go extinct...
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Ck 12: Physical Science: Thermal Energy
[Free Registration/Login may be required to access all resource tools.] What thermal energy is and how it relates to temperature and mass.
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Ck 12: Physical Science: Archimedes' Law
[Free Registration/Login may be required to access all resource tools.] Archimedes Law: displacement and buoyant force and why some objects float.
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Ck 12: Life Science: Cell Transport
[Free Registration/Login may be required to access all resource tools.] Cells are found in all different types of environments, and these environments are constantly changing. For example, one-celled organisms, like bacteria, can be...
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Ck 12: Earth Science: Location on the Earth
[Free Registration/Login may be required to access all resource tools.] Using latitude and longitude to find a location.
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Ck 12: Physical Science: Specific Heat
[Free Registration/Login may be required to access all resource tools.] Definition of specific heat and the variation in specific heat of different substances.
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Ck 12: Physical Science: Observation
[Free Registration/Login may be required to access all resource tools.] Observation and its role in scientific investigation.
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Ck 12: Physical Science: Elastic Force
[Free Registration/Login may be required to access all resource tools.] Definition of elasticity and elastic force, and examples of the use of elastic force.
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Ck 12: Life Science: Cell Membrane
[Free Registration/Login may be required to access all resource tools.] All cells have a barrier around them that separates them from the environment and from other cells. This barrier is called the plasma membrane, or cell membrane....
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Ck 12: Physical Science: Hypothesis
[Free Registration/Login may be required to access all resource tools.] Explores the criteria of a scientific hypothesis and why a hypothesis cannot be proven true.
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Ck 12: Physical Science: Acceleration
[Free Registration/Login may be required to access all resource tools.] Definition of acceleration and examples.
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Ck 12: Life Science: Gene Therapy
[Free Registration/Login may be required to access all resource tools.] Gene therapy is the insertion of genes into a person's cells to cure a genetic disorder. Could gene therapy be the cure for AIDS? No, AIDS is caused by a virus. Gene...
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Ck 12: Physical Science: Temperature
[Free Registration/Login may be required to access all resource tools.] Definition of temperature, how it is measured and the three temperature scales.
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Ck 12: Physical Science: Solutions
[Free Registration/Login may be required to access all resource tools.] What a solution is and its different parts, definition of soluble and insoluble. Solutions in different states of matter.
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Ck 12: Physical Science: Sound Waves
[Free Registration/Login may be required to access all resource tools.] Definition of sound, what sound waves are, how they are generated and what media they can travel through.
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Ck 12: Physical Science: Wave Speed
[Free Registration/Login may be required to access all resource tools.] Definition of wave speed and how it is related to wavelength and wave frequency, how to calculate wave speed and how it is related to the medium of a wave.
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Ck 12: Physical Science: Solution Concentration
[Free Registration/Login may be required to access all resource tools.] Definition of concentration of a solution, the difference between concentrated and dilute solutions and how to calculate the concentration of a solution.
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Ck 12: Physical Science: Scientific Graphing
[Free Registration/Login may be required to access all resource tools.] Usefulness and types of graphs.
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Ck 12: Physical Science: Microwaves
[Free Registration/Login may be required to access all resource tools.] Microwaves and their uses, and how cell phones and radar work.
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