CK-12 Foundation
Ck 12: Biology: Insects
[Free Registration/Login may be required to access all resource tools.] Discusses characteristics of insects.
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Ck 12: Dna Repair
[Free Registration/Login may be required to access all resource tools.] Informational text and video clips about DNA repair. After reading the text, review the key vocabulary terms and answer review questions.
CK-12 Foundation
Ck 12: Biology: Mollusks
[Free Registration/Login may be required to access all resource tools.] Discusses characteristics of mollusks.
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Ck 12: Biology: Muscle Contraction
[Free Registration/Login may be required to access all resource tools.] Describes how muscles contract according to the sliding filament theory.
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Ck 12: Biology: Mutation Effects
[Free Registration/Login may be required to access all resource tools.] Describes the effects of mutations.
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Ck 12: Biology: Nucleic Acids
[Free Registration/Login may be required to access all resource tools.] Covers the structure and function of nucleic acids.
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Ck 12: Biology: Prokaryotic and Eukaryotic Cells
[Free Registration/Login may be required to access all resource tools.] Instructional videos, grade-level texts, study aids, and interactive activities about prokaryotic and eukaryotic cells.
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Ck 12: Transcription Advanced
[Free Registration/Login may be required to access all resource tools.] A complete, illustrated article describing DNA transcription in detail from the preinitiation stage to termination.
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Ck 12: Biology: Science Experiments
[Free Registration/Login may be required to access all resource tools.] Covers the scientific experimental design.
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Ck 12: Biotechnology in Agriculture Advanced
[Free Registration/Login may be required to access all resource tools.] Students can watch a video, read some informational text and key vocabulary terms, and answer review questions about biotechnology in agriculture.
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Ck 12: The Dna Double Helix Advanced
[Free Registration/Login may be required to access all resource tools.] Students can watch a video, read some informational text and key vocabulary terms, and answer review questions about the structure of DNA.
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Ck 12: Scientific Method (Basic)
[Free Registration/Login may be required to access all resource tools.] This is a basic introduction to the scientifice method that includes links to instructional videos, grade-level texts, interactive activities, and review materials.
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Ck 12: Parallel and Skew Lines
[Free Registration/Login Required] Students explore the concept of parallel and skew lines by navigating through the interactive learning module and then answering questions that go along with the module. Students can also learn more...
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Ck 12: Life Science: Organic Compounds
[Free Registration/Login may be required to access all resource tools.] The main chemical components of living organisms are known as organic compounds and are built around the element carbon. Living things are made up of very large...
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Ck 12: Orbitals
[Free Registration/Login may be required to access all resource tools.] A collection of learning opportunities about electron orbitals. Includes videos, activities, discussion questions, and quizzes.
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Ck 12: Scientific Method
[Free Registration/Login may be required to access all resource tools.] Instructional videos, grade-level texts, interactive activities, and review material about the scientific method.
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Ck 12: Biology: Mitosis and Cytokinesis
[Free Registration/Login may be required to access all resource tools.] A description of the stages of eukaryotic cell division.
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Ck 12: Gene Expression & Regulation: Regulation of Gene Expression Advanced
[Free Registration/Login may be required to access all resource tools.] Find out about the regulation of gene expression with the help of this article, video, and review questions.
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Ck 12: Biotechnology and Medicine
[Free Registration/Login may be required to access all resource tools.] Informational text and video clips about biotechnology and medicine. After reading the text, review the key vocabulary terms and answer review questions.
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Ck 12 Exploration Series: Simulations: Physics: Tether Ball
[Free Registration/Login Required] Learn about centripetal motion in the context of the game of tether-ball.
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Ck 12 Exploration Series: Simulations: Physics: Loop the Loop
[Free Registration/Login Required] Learn about the centripetal motion in the context of a roller coaster going through a loop-the-loop and over a hill.
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Ck 12 Exploration Series: Simulations: Physics: Ballistics Tests
[Free Registration/Login Required] Practice with the concepts of conservation of momentum and energy by analyzing a special case of the ballistic pendulum.
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Ck 12: Regular and Irregular Polygons
[Free Registration/Login Required] Students explore the concept of regular and irregular polygons by navigating through the interactive learning module and then answering questions that go along with the module. Students can also learn...
CK-12 Foundation
Ck 12 Exploration Series: Simulations: Physics: Collisions
[Free Registration/Login Required] This sim explains the concept of elastic and inelastic collision using two bumper cars. A PDF worksheet and a video tutorial are also available. [3:40]