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Lesson Plan

Animal dung and the food web

Summary: 
Starting with animal dung/horse manure discuss the animals and plants that are connected to these animals, then build a food web.
Science content (2016 curriculum): 
Biology: Food Webs, Ecosystems, Biomes (3, 4)
Curriculum connection (2005 science topic): 
Life Science: Needs of Living Things (grade 1)
Life Science: Animal Growth and Changes (grade 2)
Life Science: Habitats and Communities (grade 4)
Life Science: Ecosystems (grade 7)
Materials: 
  • board to draw food web on
Procedure: 

Today we’ll look at food webs: how [horses] are connected to other animals.
How are [horses] connected to other living things?

Horse dung study
Add the animals that eat [horses] dung (e.g wood bugs, worms) to a food web diagram.

What happens when these animals eat the half rotten plants?
Observe a worm closely to see the dirt in the gut.
These animals turn rotting plants into dirt. Worm poop is dirt.

What grows in dirt? Plants! Add arrow to food web.
The decomposers are a critical part of the food web.
They eat living things and break them apart to put the nutrients back into the soil.

Food web game to show the interconnectedness of [horses] and other living things.

Notes: 

This is a half hour lesson

Grades tested: 
Gr 1
Gr 2
Teacher: 
Ingrid
Stephanie Monaghan
Site tested: 
Horse riding stables, Richmond
Lesson plan originally developed and delivered: 

Horse riding stables for Gordon Elementary class