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CK-12 Foundation
Ck 12: Life Science: 1.3 Scientific Method
Explore the process of doing scientific investigations.
CK-12 Foundation
Ck 12: Fourth Grade Science: Earth Science: Theory of Plate Tectonics
[Free Registration/Login may be required to access all resource tools.] Discusses what a tectonic plate is and how scientists can recognize its edges, how the plates move by convection in the mantle, the three types of plate boundaries...
CK-12 Foundation
Ck 12: Life Science: 12.17 Cellular Respiration and Photosynthesis
Explore the two complementary processes of photosynthesis and cellular respiration.
CK-12 Foundation
Ck 12: Life Science: 3.8 Transcription
Understand process of constructing an mRNA molecule from DNA is known as transcription.
CK-12 Foundation
Ck 12: Fourth Grade Science: Life Science: Seasonal Changes in Plants
[Free Registration/Login may be required to access all resource tools.] Looks at the seasonal changes in plants.
CK-12 Foundation
Ck 12: Fourth Grade Science: Life Science: Habitat Destruction
Looks at ways plants and animals, including humans, can impact the environment in this learning module.