CK-12 Foundation
Ck 12: Newton's Third Law of Motion
[Free Registration/Login may be required to access all resource tools.] Students find out about Newton's Third Law of Motion, and explore situations involving multiple objects.
CK-12 Foundation
Ck 12: Mass Versus Weight
[Free Registration/Login may be required to access all resource tools.] Students explore the concept of weight and how it differs from mass, and then they have the opportunity to calculate the weight of an object from its mass.
CK-12 Foundation
Ck 12: Conservation of Momentum in One Dimension
[Free Registration/Login may be required to access all resource tools.] Students learn and apply the concept of conservation of momentum using action and reaction forces with classmates on skateboards.
CK-12 Foundation
Ck 12: Work
[Free Registration/Login may be required to access all resource tools.] In this module, calculate work and explain how it relates to the overarching idea of energy.
CK-12 Foundation
Ck 12: Flex Book Textbooks: Biology Concepts
[Free Registration/Login may be required to access all resource tools.] A complete, web-based, multi-media textbook which serves as a comprehensive overview of Biology concepts.
CK-12 Foundation
Ck 12: Flex Book Textbooks: Life Science Concepts for Middle School
[Free Registration/Login may be required to access all resource tools.] A complete, web-based, multi-media textbook covering a wide variety of Biological science concepts for middle grades.
CK-12 Foundation
Ck 12: Biology: Insects
[Free Registration/Login may be required to access all resource tools.] Discusses characteristics of insects.
CK-12 Foundation
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.
CK-12 Foundation
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.
CK-12 Foundation
Ck 12: Biology: Mutation Effects
[Free Registration/Login may be required to access all resource tools.] Describes the effects of mutations.
CK-12 Foundation
Ck 12: Biology: Nucleic Acids
[Free Registration/Login may be required to access all resource tools.] Covers the structure and function of nucleic acids.
CK-12 Foundation
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.
CK-12 Foundation
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.
CK-12 Foundation
Ck 12: Biology: Science Experiments
[Free Registration/Login may be required to access all resource tools.] Covers the scientific experimental design.
CK-12 Foundation
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.
CK-12 Foundation
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.
CK-12 Foundation
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.
CK-12 Foundation
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...
CK-12 Foundation
Ck 12: Chemistry
[Free Registration/Login may be required to access all resource tools.] A large resource guide to online textbooks for chemistry. Includes several chemistry online texts with links to download the text to PDF, Kindle or Ipad.
CK-12 Foundation
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.
CK-12 Foundation
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.
CK-12 Foundation
Ck 12: Earth Science: Weather Fronts
[Free Registration/Login may be required to access all resource tools.] Describes the weather fronts that occur when two air masses collide. Includes downloadable handouts.
CK-12 Foundation
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.