CROCODILES AND ALLIGATORS

by Monica Seelman

This lesson was created as a part of the SMART website and is hosted by the Illinois Institute of Technology


 Crocodiles and Alligators 

This lesson will introduce primary students to large reptiles: crocodiles and  alligators.  Students will study the size, diet, physical characteristics, raising of young, and habitat of these reptiles.  They will learn about the similarities and differences between crocodiles and  alligators. 


Welcome to the land of crocodiles and alligators.  You are going to take a trip through the internet to answer questions  on a TRIP SHEET about these large reptiles.  

(Once you visit any of these sites, use the "back  button" on the browser to return to this lesson.)

1.    These animals are the largest REPTILES in the world.  To find out more about REPTILES, click on these site.
Answer question 1. below

    http://www.brookfieldzoo.org/ and  click on Reptile House on that page.

2.    Crocodiles and alligators belong to the same family.  This family of animals are called CROCODILIANS.  Click on each of these sites. Print out a picture of the American Alligator and the American Crocodile.  Then write four ways that they are different.  

3.    Where do crocodiles and alligators make their home?  They like to live in a HABITAT which is swampy and warm.  Everglades National Park  has swamps where both alligators and crocodiles live.  Click on these web sites to learn more about SWAMPS and EVERGLADE NATIONAL PARK.  

Question:  Where is Everglades National Park?  

4.    Crocodiles and alligators only live in certain parts of the world.  Click on this site to find the "distribution" (where they live) of the American alligator and the slender-snouted crocodile.  Write your answer on the "trip sheet."

    http://www.pbs.org/wgbh/nova/crocs/whos/   (Click on "non JavaScript version".)

5.    Crocodiles and alligators have SPECIAL ADAPTATIONS which help them survive.  Click on this site and answer the question "Why do    crocodiles prefer "calm water"?

    http://www.pbs.org/wgbh/nova/crocs/clickable/  

6.    Crocodiles and alligators are CARNIVORES or MEAT-EATERS.  Click on this site and scroll down to see what animals they like to eat.         List five animals that would be on their menu.

    http://en.wikipedia.org/wiki/Crocodile

7.    Crocodiles and alligators lived at the same time as dinosaurs.  Check out this web site and write the names of three ancient crocodilians on your sheet.

    http://www.enchantedlearning.com/subjects/reptiles/alligator/Alligator.shtml 


Other resources for teachers.

Internet Trip Sheet for Alligators and Crocodiles

  1. What is another name for "cold-blooded"?
    ______________________________________________
    What controls the body temperature of reptiles?
    ______________________________________________
  2. List four ways that crocodiles and alligators are different.
    1. ______________________________________________
    2. ______________________________________________
    3. ______________________________________________
    4. ______________________________________________
  3. Where is the Everglades National Park?
    ______________________________________________
  4. Write the "distribution area" for these animals: 
  5. Why do crocodiles prefer "calm water:?
    ___________________________________________________________________

    ___________________________________________________________________
  6. List five animals that crocodiles and alligators eat.
    1. ______________________________________________
    2. ______________________________________________
    3. ______________________________________________
    4. ______________________________________________
    5. ______________________________________________
  7. The names of three ancient crocidilians are:
    1. ______________________________________________
    2. ______________________________________________
    3. ______________________________________________

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