Globio
Glossopedia: Animals
The animal kingdom and its classification are explained and broken down into vertebrates and invertebrates in this resource. "Best-of" the animal kingdom list given - fastest, smallest, largest, strongest and more.
University of Southern California
Structure of Matter: Animals
A slide show that demonstrates the development of physical structure in the animal world, moving from sponges through mammals.
Kidport
Kid Port: Arachnids Spiders, Ticks, and Scorpions
KidPort.com provides simple information on arachnids, a type of arthropod that includes spiders, ticks, and scorpions.
Estrella Mountain Community College
Online Biology Book: Paleobiology: The Late Paleozoic
College-level biology book covers the Late Paleozoic geologic time period in Earth's history. See photographs of fossil evidence from that era in addition to diagrams to help with understanding.
University of California
Understanding Evolution: Introducing the Arthropods
This extensive look at the arthropod provides enough information for any budding naturalist, but will also be interesting to one casually interested in insects, spiders, and crustaceans. The pictures are outstanding, and the writing is...
McGraw Hill
Glencoe Biology: Arthropod Diversity: Self Check Quiz
Five self-checking, multiple-choice quiz questions about animals in the Phylum Arthropoda.
Scholastic
Scholastic: Study Jams! Science: Animals: Arthropods
A slideshow and a short multiple-choice quiz on the group of invertebrates called arthropods, with examples of different kinds.
Biology 4 kids
Biology4 Kids: Skeletons Inside and Out
Explore the skeletal system. Identify the differences of the endoskeleton and exoskeleton, what the system does, how it interacts with other systems, and how it might vary genetically.
Other
Backyard Nature: Arthropods in General
A general overview of the physical characteristics of arthropods, including information about their important ecological role on the planet with their immense population.
BiologyWise
Biology Wise: Chitin: Structure, Function, and Uses
Chitin is a biopolymer that gives rigidity to exoskeletons and other protective structures of organisms, thereby preventing injury to soft internal tissues and other parts. Its chemical structure is shown and its functions are described.
University of Kentucky
University of Kentucky: Bug Fun
This fun site is designed for teachers who want to have interactive fun in the classroom. "Several articles give resources and basic information about insects and their relatives while others outline activities with different insect...
ClassFlow
Class Flow: Moving and Growing
[Free Registration/Login Required] In this unit children learn about how the skeleton is related to movement and support in humans and what happens to the skeleton and muscles as they move. They also compare human bones and skeletons...
Ducksters
Ducksters: Grasshoppers
Kids learn about the Grasshopper, high jumping insects that make music with their legs and wings.
Ducksters
Ducksters: Bugs (Insects and Arachnids)
What is an instect? Kids learn about where and how bugs live. What is an arachnid?
Mocomi & Anibrain Digital Technologies
Mocomi: Corals and Coral Reefs
Discover interesting facts about coral reefs and what corals eat.
Other
Natural Aquariums: Arthropods
A brief description of the worlds most diverse phylum, the arthropods. General physical characteristics and body structure.