Teach your Kids about Cnidaria!

Teach your Kids about Cnidaria!
Photo by: CREAA Academy

CREAA Academy Submitted by: CREAA Academy

Cnidaria is a phylum containing over 10,000[5] species of animals found exclusively in aquatic and mostly marine environments. Their distinguishing feature is cnidocytes, specialized cells that they use mainly for capturing prey. Teach your kids with this simple display highlighting Cnidaria.

0 minutes
42 - 60 months
Group size
1 - 8 tots


  • 3 Kitchen sponges
  • String (Cut into long pieces varying in length)
  • 1 Styrofoam Sheets
  • 1 bottle Glue
  • 3 Labels
  • 1 set Water colors
  • 1 Popsicle sticks
  • 1 box Markers
  • 1 piece Paper


  1. Use water colors to paint the Styrofoam sheet blue which will represent water.
  2. Cut kitchen sponges into different shapes as shown in the picture. Glue strings to the bottom of the sponges. Use marker add identifying marks on the sponges.
  3. Label the sponges.
  4. Encourage discussion. Jellyfish and corals are a few Cnidarian species.
Associated Activity
1. Read "Cnidarians and Worms (Reading Essentials in Science)" by Jenny Karpelenia
2. Take a trip to your local aquarium and discover Cnidarians.
Pre-cut the sponges and string for younger children.
Have older students research, write about and present their findings on Cnidarians.

Developmental skills