Who eats whom at the rocky shore?

Who eats whom at the rocky shore?

Pencil and paper
Overview
Using this Resource
Connecting to the Curriculum
Marking Student Responses
Working with Students

Here is a food web from the sea. Use the food web above to answer the following questions.

a)
Complete this food chain by filling in the missing link.
 
seaweed ____________________ starfish
 
b) What eats periwinkle?   ____________________
 
c) What does a crab eat?    ____________________
 
d) How many different foods does the fish eat?    ______________
 
e)
Food chains start with a producer. Draw a two-link food chain from the food web above, which starts with a producer and does not include starfish.
 
____________________ ____________________ ___________________
 
f)
Draw the longest food chain possible from the food web above.
 
 
Task administration: 
This task can be completed with pencil and paper.
Level:
4
Description of task: 
Students are provided with a food web based on organisms of the rocky shore and sea. Students use this to answer questions about food chains in the food web.
Curriculum Links: 
Science capabilities
The capabilities focus is brought about by the conversations you have and the questions you ask.
 
Capability: Interpret representations
This resource provides opportunities to discuss scientific conventions for representing feeding relationships (a food web).
 
 
 

 
Science capabilities: 
Making Better Sense: 
Answers/responses: 
  Y8 (09/01)
a) limpet very easy
b) fish moderate
c) limpet moderate
d) 5 moderate
e) Any 1 of:

  • tiny plants tiny animals fish
  • tiny plants mussel fish
  • seaweed periwinkle fish
  • seaweed limpet crab
easy
f) Any 1 of:

  • tiny plants mussel starfish fish seal
  • seaweed limpet starfish fish seal
  • seaweed limpet crab fish seal

NOTE: Accept if correct names and order are present, but arrows are missing.

difficult
Diagnostic and formative information: 
  Common errors
b) 43% of students answered seaweed.
c) 22% of students answered fish and seal.
19% of students answered fish.