CK-12 Foundation
Ck 12: Biology: Sponges
[Free Registration/Login may be required to access all resource tools.] Discusses characteristics of sponges.
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Ck 12: Biology: Stems
[Free Registration/Login may be required to access all resource tools.] Describes how stems transport fluids and affect the shape of a plant.
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Ck 12: Biology: Symbiosis
[Free Registration/Login may be required to access all resource tools.] Overview of symbiotic relationships.
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Ck 12: Biology: Types of Biochemical Reactions
[Free Registration/Login may be required to access all resource tools.] Introduction to biochemical reactions.
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Ck 12: Biology: Vascular Plants
[Free Registration/Login may be required to access all resource tools.] Covers vascular tissues and plants.
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Ck 12: Biology: Vertebrate Evolution
[Free Registration/Login may be required to access all resource tools.] An overview of vertebrate evolution and when important vertebrate traits evolved.
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Ck 12: Biology: Vertebrate Reproduction
[Free Registration/Login may be required to access all resource tools.] Discusses three types of reproductive strategies for vertebrates.
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Ck 12: Biology: Virus Characteristics
[Free Registration/Login may be required to access all resource tools.] Introduction to the characteristics of viruses.
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Ck 12: Biology: Virus Classification
[Free Registration/Login may be required to access all resource tools.] Discusses how viruses are classified.
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Ck 12: Biology: Virus Replication
[Free Registration/Login may be required to access all resource tools.] Overview of the ways viruses can replicate.
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Ck 12: Biology: Water and Life
[Free Registration/Login may be required to access all resource tools.] Covers the structure and properties of water.
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Ck 12: Biology: Water and Life
[Free Registration/Login may be required to access all resource tools.] Covers the importance of biochemical reactions involving water.
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Ck 12: Biology: Water Cycle
[Free Registration/Login may be required to access all resource tools.] Covers the water cycle.
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Ck 12: Biology: What Is a Scientist
[Free Registration/Login may be required to access all resource tools.] What exactly makes a person a scientist and what is their role in society? Students develop an understanding of the interrelationships among individuals, cultures,...
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Ck 12: Chemistry: Alchemy
[Free Registration/Login may be required to access all resource tools.] Delves into the history of alchemy and contributions made by alchemists.
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Ck 12: Chemistry: Alkaline Earth Metals
[Free Registration/Login may be required to access all resource tools.] Covers alkaline earth elements, electron configuration and reactions.
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Ck 12: Chemistry: Alloys
[Free Registration/Login may be required to access all resource tools.] Explains the composition and uses of alloys.
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Ck 12: Chemistry: Areas of Chemistry
[Free Registration/Login may be required to access all resource tools.] Introduces the major areas and disciplines of chemistry.
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Ck 12: Chemistry: Atomic Mass Unit
[Free Registration/Login may be required to access all resource tools.] Definition of atomic mass unit is discussed.
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Ck 12: Chemistry: Atomic Nucleus
[Free Registration/Login may be required to access all resource tools.] Describes the modern concept of the atomic nucleus.
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Ck 12: Chemistry: Atomic Number
[Free Registration/Login may be required to access all resource tools.] Explains the arrangement of the periodic table.
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Ck 12: Chemistry: Boiling
[Free Registration/Login may be required to access all resource tools.] Covers boiling point.
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Ck 12: Chemistry: Calculating Atomic Mass
[Free Registration/Login may be required to access all resource tools.] Covers definition of atomic mass and calculations of atomic mass.
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Ck 12: Chemistry: Cathode Ray Tube
[Free Registration/Login may be required to access all resource tools.] Covers the development of the first cathode ray tube.