Barnacle

High school (ages 12+)
Animals & Nature

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/barnacle

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the scientific name?Subclass Cirripedia
2. What do barnacles look like and where do they live?Barnacles look like little rocks and live on many surfaces, such as rocky shorelines, piers, buoys, and even the skin of whales, sea turtles, and sharks.
3. How do barnacles attach themselves to things?After a free-swimming larval stage, barnacles grow a hard, multi‑plate shell that lets them stick permanently to rocks, boats, and animals.

Nauplius Larva: The first free-swimming larval stage of many crustaceans, characterized by a simple body and three pairs of appendages.
Sessile: An organism that is fixed in one place and unable to move freely, such as an adult barnacle.
Biofouling: The undesirable accumulation of microorganisms, plants, algae, or animals on submerged structures, particularly ship hulls, leading to increased drag and reduced efficiency.