Biology Junction
Cnidarians and Ctenophorans
Cnidaria is a broad phylum of 11,000 different species from jellyfish to coral. Most Cnidarians are marine species with a few freshwater examples. A lesson presentation explains the important characteristics of different species of both...
Biology Junction
Invertebrates
How many different invertebrates can you name? A thorough presentation describes the eight different Phyla of invertebrates. Each slide gives a quick overview of the important physical characteristics of each of the Phyla.
Curated OER
Sponges, Cnidarians and Worms Concept Map
In this sponges, cnidarians and worms worksheet, students complete a concept map on simple invertebrates. They fill in 11 blanks with the correct answers from the list.
Biology Junction
Cnidarians
In this cnidarian worksheet, learners study the biology of the different species of cnidarians and complete a series of questions.
Curated OER
Invertebrates
For this invertebrate worksheet, students review characteristics of the different types of invertebrates. This worksheet places 32 vocabulary words into a crossword puzzle.
Curated OER
Something Fishy?
Students try to draw and identify a jellyfish from a physical description. After reading an article, they discover new information about cnidarians. In groups, they research and develop dioramas about a specific cnidarian species. They...
Curated OER
Invertebrates
In this invertebrates worksheet, students read about the characteristics of the different groups of invertebrates. Then students complete 10 multiple choice questions.
Curated OER
Poriferans and Cnidarians
Students study the major phyla of the animal kingdom. In this biology instructional activity unit, students identify their general characteristics. They define taxonomy terminologies.
National Geographic Kids
National Geographic Kids: Animals: Jellyfish
Take an exciting look at the jellyfish! Easy to read facts including habitat, physical appearance, movement, diet, enemies, as well as colorful photos. Click on the menu tab to view a video clip of this floating creature.
The Field Museum
Field Museum: Exhibits: Evolving Planet: Carboniferous
Explore this impressive compilation of scientific research focused on the Carboniferous Period in the late Paleozoic Era.
University of California
Ucmp: Cnidarian Fossil Records
At this University of California, Berkeley site you can find out far back the Cnidarians show up in Fossil records. Also, find out how much they have changed over time! Be sure to click on the highlighted words to go to other interesting...
Wikimedia
Wikipedia: Cnidaria
Wikipedia offers great information on Cnidarians, a phylum of animals including coral, sea anemones, jellyfish, sea pens, sea wasps, and more.
TED Talks
Ted: Ted Ed: How Does a Jellyfish Sting?
Neosha S. Kashef details the science behind the jellyfish sting. [4:17]
Other
Fisheye View Cam a Live Camera Recording Corals and O
A wonderful site with lots of pics and video feeds where you can watch real time aquariums and see fast motion coral movements.
Other
Whitman College: Deep Sea Pages
Descriptions and pictures of creatures that live at abyssal depths and on the abyssal plains of the world ocean. Link to other sites.
McGraw Hill
Glencoe Biology: Sponges and Cnidarians: Self Check Quiz
Answer five comprehension check questions about cnidarians and sponges in this interactive quiz.
Biology 4 kids
Biology4 Kids: Jellyfish More Cnidarians
Find out about the body plans of some of the most famous of the Cnidarians: the jellyfish.
Biology 4 kids
Biology4 Kids: Cnidarian Anatomy
Find out about the anatomy of a cnidarian on this simplified biology reference page.
Monterey Bay Aquarium
Monterey Bay Aquarium: Brain Coral
Resource presents extensive information about brain coral, including diet, size, range, relatives, conservation, and cool facts.
CK-12 Foundation
Ck 12: Biology: Cnidarians
[Free Registration/Login may be required to access all resource tools.] Discusses characteristics of cnidarians like jellyfish and corals.
CK-12 Foundation
Ck 12: Life Science: Cnidarians
[Free Registration/Login may be required to access all resource tools.] Cnidarians, in the phylum Cnidaria, include organisms such as the jellyfish and sea anemones. These animals are found in shallow ocean water. Learn more about...
Other
Sea Anemones, Cnidaria
A resource with pictures that cover several types of anemones and their living environments.
BiologyWise
Biology Wise: Information About the Hydrostatic Skeleton
Explains what a hydrostatic skeleton is and the types of organisms that have one. Describes examples from six phyla and the advantages and disadvantages of this type of skeleton.
CK-12 Foundation
Ck 12: Life Science: 9.3 Cnidarians
Explore the behaviors, characteristics, and classification of cnidarians.