McGraw Hill
Arthropods
Are spiders related to crabs? Study the order of arthropods with a reading selection about animal diversity. It provides details about each class within the order, as well as vivid pictures and explanatory charts.
Curated OER
Endangered Relationships
Students study the interrelationship between the horseshoe crab and red knot. In this ecology lesson plan, students explain why several species became extinct. They research about endangered species found in their region.
Curated OER
Delaware Alphabet Activity
In this alphabetizing words to the first and second letters worksheet, students read words in a word bank about places and things in Delaware and write them in alphabetical order. Students write 14 answers.
Curated OER
Long Island Beach Life
Have your class learn about marine life through this resource. This comprehensive lesson has learners discuss marine life, learn key vocabulary, discuss environmental concerns, and play games related to migration and predator/prey...
American Museum of Natural History
Create Your Own Time Capsule
The corona virus pandemic is indeed a historic event. A time capsule activity permits young historians to document these days of social distancing, remote learning, and quarantine by collecting artifacts that capture what their lives are...
Curated OER
Using Word Referents
Students edit an existing piece of writing focusing of improving word choice. They create lists of words that can be used in place of the main topic and rewrite the piece using the new vocabulary.
Curated OER
Life Cycle: Diversity in a Balance
In this life cycle workbook, 3rd graders complete several different activities in which they analyze different invertebrates, identify arthropods, examine human biology and plants, and study natural environments. 20 different activities...
Curated OER
Delaware Vocabulary
In this Delaware worksheet, students match vocabulary words to sentences describing them having to do with famous people, places, and history of Delaware. Students match 11 vocabulary words.
NOAA
Noaa: Estuaries 101 Curriculum: Hooray for Horseshoe Crabs
Learn about the anatomy and ecological relationships of the horseshoe crab.
Other
Horseshoe Crabs and Connection to Shorebirds
A description of the link between the horseshoe crab life cycle and shorebird migrations. Worth checking out for information on both kinds of organism.
A-Z Animals
A Z Animals: Animal Facts: Horseshoe Crab (Limulidae)
This entry identifies the defining characteristics of the Limulidae, otherwise known as the horseshoe crab.
TED Talks
Ted: Ted Ed: Why Do We Harvest Horseshoe Crab Blood?
Elizabeth Cox illuminates the incredible properties of horseshoe crab blood.
Regents of the University of Michigan
Animal Diversity Web: Class Merostomata (Horseshoe Crab)
Find general information about the Merostomata class, which includes horseshoe crabs and the extinct eurypterids. Topics include diet, body charactersitics, and respiratory system.
Other
Horshoe Crabs and Human Use
A well-written review of the link between Horseshoe Crabs and humans through history. Includes timelines of milestone events.
Smithsonian Institution
Smithsonian National Zoo: Zoogoer Magazine: Crabs in the Crossfire
This article addresses facts and information related to the Horseshoe Crab. In addition to general information, the article touches on conservation efforts and populations trends.
Other
Horseshoe Crab: History and Biology
Resource is filled with lots of information presented in an easy to follow format. Illustrations are excellent.
Sheppard Software
Sheppard Software: Horseshoe Crabs
This site gives an in-depth description of a daddy long legs, including its behavior, appearance, reproduction, and classification. The site includes photos and illustrations and an interactive quiz to test your understanding.
PBS
Pbs: Nature: Crash: A Tale of Two Species
A documentary film about the horseshoe crab and its importance to a tiny shorebird known as the red knot bird. Human threats to the crab will directly threaten both the crab and the little bird who depends on it. Links to related topics...
PBS
Pbs Learning Media: Marathon Migrators
This video segment from NOVA: "The Mystery of Animal Pathfinders" explores how the migratory patterns of shorebirds have evolved to coincide with the spawning of horseshoe crabs. [6:00]
Read Works
Read Works: Blue Bloods of the Sea
[Free Registration/Login Required] An informational text about horseshoe crabs. A question sheet is available to help students build skills in reading comprehension.
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