University of Michigan
University of Michigan Critter Catalog: Arachnids
This informative site provides a general description of arachnids and then focuses on arachnids native to southeastern Michigan. Pictures and classification groupings are included.
CK-12 Foundation
Ck 12: Life Science: Arachnids
[Free Registration/Login may be required to access all resource tools.] Arachnids are a class of joint-legged invertebrates in the subphylum Chelicerata. They live mainly on land but are also found in freshwater and in all marine...
CK-12 Foundation
Ck 12: Life Science: 9.13 Arachnids
Understand the behaviors, characteristics, and classification of arachnids.
Other
Tarantula's Burrow: British Spiders What Is a Spider?
A list of characteristics that a creature must satisfy to be considered a spider, as well as a list with pictures and descriptions of spiders commonly found in the UK.
Other
Tarantula's Burrow: British Spiders What Is a Spider?
A list of characteristics that a creature must satisfy to be considered a spider, as well as a list with pictures and descriptions of spiders commonly found in the UK.
Songs for Teaching
Songs for Teaching: Arachnids
At this site from Songs for Teaching, Dennis Westphall sings a great song that tells the characteristics of a spider. It even points out traits of specific spiders such as the black widow.
Sheppard Software
Sheppard Software: Daddy Long Legs
Find out the difference between harvestmen and spiders in the arachnid family. Read about the diet, characteristics, and status as an endangered species.
University of California
Ucmp: Scorpion Evolution
A site from the University of California-Berkeley that details the process by which scorpions have evolved. Includes identifying characteristics of modern-day scorpions.
Other
Natural Perspective: Joint Legs (Arthropoda)
A brief description of arthropoda and their population on the earth today. Som pictures of examples of the different classes of arthropods. (Includes insects, arachnids, crustacians, and malacostraca.)
Curated OER
Kids Health: Hey! A Scorpion Bit Me
This site is provided for by Kids Health. Scorpions are nocturnal, which means they sleep mostly during the day and are active at night. Read about characteristics of scorpions, where they live, and what to do if you are stung by one.
PBS
Pbs Nature: Spider
There are about 35,000 known species of spiders in the world and this research resource site surveys these animals in text and images.
University of Kentucky
University of Kentucky: Brown Recluse Spider
Webpage reference on the brown recluse spider which is more poisonous than a black widow and is more often found infesting homes and businesses.
BiologyWise
Biology Wise: A Detailed Description of the Anatomy of Spiders
Describes anatomical features of a spider, including its external structure, eyes, mouth parts, digestive system, circulatory system, respiratory system, nervous system, reproductive system, and its spinnerets.
Regents of the University of Michigan
Animal Diversity Web: Phylum Arthropoda
This general overview of the arthropod phylum, which includes insects and arachnids, looks at such topics as body symmetry, appendages, movement, respiratory and nervous systems, and reproduction.
Canadian Museum of Nature
Canadian Museum of Nature: Natural History Notebooks
This site from the Canadian Museum of Nature, a natural history museum, provides short information blurbs and fun facts on over 240 different common animals categorized by type (mammals, fish, reptiles, invertebrates, amphibians,...
Burke Museum
Burke Museum of Natural History and Culture: The Spider Myths Site
Are spiders insects? Do you really swallow spiders while you're sleeping? Myths and questions related to spiders are addressed on this site. Links to additional information can also be found here.
CK-12 Foundation
Ck 12: Life Science: Importance of Arthropods
[Free Registration/Login may be required to access all resource tools.] Arthropods might seem a little scary, but they are actually performing important roles in the environment. Arthropods are important to the ecosystem and to humans in...
HotChalk
Hot Chalk: Lesson Plans Page: Spooky Spiders
This simple lesson plan is designed to introduce young young scholars to the characteristics of a spider and to classify whether a spider is an insect or an arachnid by analyzing its characteristics.