Day 2 - predation, mutualism, commensalism, or parasitism

1. Tennessee Science Workbook page 56

2. Discuss each relationship with PowerPoint

   • commensalism - relationship between two living organisms where one benefits and the other is neither harmed nor helped

     • using a second organism for housing such as small mammal or bird that lives in holes in trees or orchids which live in trees

     • birds that live among cattle to eat the insects stirred up as they walk - egrets hunt for insects near a grazing animal's mouth

     • clownfish lives among the forest of tentacles of an anemone and is protected from potential predators

     • one animal attaching itself to another for transportation such as barnacles attach to shells or whales or a shrimp riding on a sea slugs

     • A remora is a small fish that attaches itself to the underside of a shark. There it feed upon leftovers from shark’s meals.

   • parasitism - one organism, usually physically smaller of the two (the parasite) benefits and the other (the host) is harmed

     • insects such as mosquitoes feeding on a host

     • tapeworm or hookworms living in host's gut

     • ticks and fleas that live in a host animal's fur - bite the animals and drink its blood

     • spider mites suck sugar from plants

     • The roots of the Owl Clover are partly parasitic on the roots of other desert wildflowers.

     • Milkfish eats algae

     • Venus flytrap and the pitcher plant eats insects with their leaves

   • mutualism - both species benefit from the interaction
     PowerPoint with examples of mutualism http://facstaff.bloomu.edu/ccorbin/mutualismexamples.ppt

     • flowers and their pollinators (examples:  bees and hummingbirds gather nectar and spread pollen)

     • birds and mammals eat berries and fruits while plant benefits by the dispersal of it seeds

     • coral reefs- the corals get food and the algae get protection

     • algae and fungi > lichen - alga gets water and nutrients from the fungus and fungus gets food from the alga

     • cleaners eat insect pests from the skin of animals (ex: Egyptian plover cleans giraffes and buffaloes)

     • many herbivores such as cows, sheep, deer, horses and rabbits depend on bacteria that live in their stomachs to break down the plant material

   • predator - one eats another (Herbivores eat plants. Carnivores eats animals.)

     • bear eating fish

     • anole eats insect

3. United Streaming Video

   •  Video Segment Biotic Factors [03:57] http://player.discoveryeducation.com/index.cfm?guidAssetId=D76B8E87-47D9-481C-A5D1-C54FA6FE90BD&blnFromSearch=1&productcode=US

   •  Video Segment Symbiotic Relationships Among Sea Creatures [03:50] http://player.discoveryeducation.com/index.cfm?guidAssetId=E6019C42-B0B7-4E1F-825E-3E4FA38FB469&blnFromSearch=1&productcode=US
      

4. For Graphic Organizer book create an envelope fold organizer.

   

   

   

Predator Photos

• http://www.acclaimimages.com/search_terms/predator.html

• http://www.worldofstock.com/search_pages/prey.php

• http://www.fotosearch.com/photos-images/cat-prey.html

Commensalism Photos

• http://www.fotosearch.com/photos-images/commensalism.html

• http://www.acclaimimages.com/cgi-bin/photobase/search.pl

Parasitism Photos

• http://www.fotosearch.com/photos-images/parasitism.html

Mutualism Photos

• http://www.fotosearch.com/photos-images/mutualism-animal-relationship.html

Examples from the Internet

• http://www.oceanfootage.com/stockfootage/Sea_Slug

• http://www.geocities.com/eco_psychology

• http://www.nearctica.com/ecology/pops/commens.htm

Day 3 - Human Actions

1. Tennessee Science Workbook page 66-72

2. View PowerPoint to go over the following:

   1. Deforestation

   2. Strip Mining

   3. Draining Wetlands

   4. Over harvesting

   5. Pollution

   6. Acid Rain

   7. Oil Spills

   • Ozone Depletion

   • Global Warming

3. For Graphic Organizer book create a layer look book on how human activities affect the environment. human_activities.htm

4. Experiments on Acid Rain

   • ACTIVITY AND PROCEDURES:
     1.   Place a piece of chalk in pan.
     2.   Using an eyedropper, have one student drop vinegar
          onto the chalk in a constant stream.
     3.   Observe the fizzing on the surface of the chalk
          when the vinegar is dropped.
     4.   Notice the crumbling of the chalk.

• Bottle Ecosystem http://teacher.scholastic.com/dirt/ecosys/lab.htm

  Experiment 2

  

  One Week Later

  Beans planted and watered with vinegar water.

  Beans planted and watered with fresh water.

   

  
   

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Bedtime Five