Student Guide: Evolution Videodisk from Videodiscovery
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Student Guide:
Evolution Videodisk from Videodiscovery

Mari Knutson

This worksheet is to be used with the videodisk from Videodiscovery titled Evolution: Inquiries into Biology and Earth Science. Written because there is no computerized control program available, it is to be used with a standard videodisk remote control. The guide provides step-by-step instructions so that students can do this activity on their own.

Name Period Class:

Press Chap/Frame, 1, Search to see the menu. (Be sure the display says CHAPTER before pressing 1.)

CHAPTER. 3 HOW LONG IS A LONG TIME?

Press Chap/Frame, 3, Search. After each stop, when you are ready to continue, press PLAY.

1. What might account for the color of this water?





2. What other natural forces erode rock?





3. What happens to the rock material as it is worn away?





4. How might sedimentary rocks form?





5. Grand Canyon: How might you determine the ages of the rocks you see here?





6. How do rocks and fossils relate to each other in determining age?





7. Count the number of ticks and multiply by 2 million to determine the age of the Grand Canyon.

Press Chap/Frame, 7, Search

CHAPTER 7: TRACE FOSSILS

Press PLAY

1. At each slide, try to figure out what made the tracks. PRESS Still/Step FWD

A._________________D._________________G._________________
B._________________E._________________H._________________
C._________________F._________________I._________________

2. Observe the next 12 slides. These are fossil tracks of various dinosaurs. What are some limitations in determining the identity of the makers?





3. Examine the four slides showing the footprints found at Laetoli. They are thought to be of australopithecines. What are some limitations in interpreting these fossils?





4. The next four slides show the trackways of primates. What is the difference between those of humans and other primates?





5. Based on tracks, would australopithecines be classified with humans? Explain.

Press Chap/Frame, 9, Search

CHAPTER 9: HUMANS AND APES - A QUESTION OF ORIGINS

Press Still/Step FWD

1. Go back and forth as much as you need in order to make a list of similarities and differences.

CHARACTERISTIC HUMANS APES
POSTURE    
LEG & ARM LENGTH    
FEET    
TEETH    
SKULL    
FACE    
BRAIN SIZE    

Press Chap/Frame, 11, Search

CHAPTER 11: NATURAL SELECTION

Press Still/Step FWD

1. Go through the series of slides. What might happen to the population of flies if the farmer didnŐt use pesticides? Explain.





2. How might natural selection occur with the use of pesticides?





Press Chap/Frame, 12, Search

CHAPTER 12: ADAPTATION

Press PLAY, again press PLAY

1. Use Still/Step FWD to observe the next 18 slides. List as many ways these plants are adapted to desert life as you can.





Press PLAY to observe the next two sequences.

2. Design (draw and describe) the perfect desert animal.









Press Chap/Frame, 13, Search

CHAPTER 13: GROUSE - AN EVOLUTIONARY PROBLEM

Press PLAY when ready to go on.

1. A species does not interbreed in nature for various reasons. Are the grouse and the prairie-chicken separate species? Explain.





Press Chap/Frame, 1, Search to return to the menu. Use the remaining time to peruse any of the other chapters that look interesting.

On to Vertebrate Dioramas
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