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: Life Science: Vertebrate Characteristics
[Free Registration/Login may be required to access all resource tools.] Vertebrates are animals with backbones. These include fish, amphibians, reptiles, birds, and mammals. Learn more about vertebrate characteristics in this learning...
Channel 4 Learning
4 L: Science Essentials: Choose Life
A great review for understanding life cycles and many aspects of living things. Find topics and their main ideas, vocabulary review, quizzes, and complementary activities for teachers to use.
Georgia Department of Education
Ga Virtual Learning: Marine Vertebrates
Learn about vertebrates found in the ocean, their individual methods of adaptations, identifying characteristics and contributions to the marine ecosystem.
CK-12 Foundation
Ck 12: Life Science: Invertebrates
[Free Registration/Login may be required to access all resource tools.] Animals are also often identified as being either invertebrates or vertebrates. These are terms based on the skeletons of the animals. Vertebrates have a backbone...
CK-12 Foundation
Ck 12: Life Science: Amphibians
[Free Registration/Login may be required to access all resource tools.] Amphibians are a group of vertebrates that have adapted to live in both water and on land. Amphibian larvae are born and live in water, and they breathe using gills....
CK-12 Foundation
Ck 12: Life Science: Birds
[Free Registration/Login may be required to access all resource tools.] There is an amazingly wide variety of birds. Birds are vertebrates. Almost all have forelimbs modified as wings, but not all birds can fly. Learn more about birds in...
CK-12 Foundation
Ck 12: Life Science: Chordates
[Free Registration/Login may be required to access all resource tools.] Did you know that fish, amphibians, reptiles, birds, and mammals are all related? They are all chordates. Chordates are a group of animals that includes vertebrates,...
Georgia Department of Education
Ga Virtual Learning: Earth and Life History
In this amazingly comprehensive tutorial you will learn about the geological and environmental changes that occurred during the geologic time scale.
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: Earth Science: Types of Marine Organisms
[Free Registration/Login may be required to access all resource tools.] Provides an overview of the organisms living in the sea.