Skills Practice Lab DATASHEET for LABBOOK

Name______Class______Date______Skills Practice Lab DATASHEET FOR LABBOOK Voyage of the USS Adventure You are a crew member on the USS Adventure. The Adventure has been on a 5- year mission to collect life-forms from outside the solar system. On the voyage back to Earth, your ship went through a meteor shower, which ruined several of the compartments containing the extraterrestrial life-forms. Now it is necessary to put more than one life-form in the same compartment. You have only three undamaged compartments in your starship. You and your crewmates must stay in one compartment, and that compartment should be used for extraterrestrial life-forms only if absolutely necessary. You and your crewmates must decide which of the life- forms could be placed together. It is thought that similar life-forms will have similar needs. You can use only observable characteristics to group the life-forms. PROCEDURE 1. Use the data table below to make observations about the characteristics of the various life-forms pictured on this page. Look at the images in your textbook to observe color.

LIFE-FORM CHARACTERISTICS color shape legs eyes life-from 1 Life-from 2 Life-from 3 Life-from 4 Life-From 5 Life-From 6 Life-From 7

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Voyage of the USS Adventure continued 2. Describe each characteristic as completely as you can. Based on your observations, determine which of the life-forms are most alike. 3. Look at the data table below. Fill in the table according to the decisions you made in step 2. State your reasons for the way you have grouped your life- forms. Life-form Room Assignment Compartment Life-forms Reasons 1 2 3 4. The USS Adventure has to make one more stop before returning home. On planet X437 you discover the most interesting life- form ever found outside of Earth—the CC9, shown at right. Make a decision, based on your previous grouping of life-forms, about whether you can safely include CC9 in one of the compartments for the trip to Earth.

ANALYZE THE RESULTS 1. Describe the life-forms in compartment 1. How are they similar? How are they different? ______2. Describe the life-forms in compartment 2. How are they similar? How do they differ from the life-forms in compartment 1? ______

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Voyage of the USS Adventure continued 3. Are there any life-forms in compartment 3? If so, describe their similarities. In which compartment will you and your crewmates remain for the journey home? ______

DRAW CONCLUSIONS 4. Are you able to transport life-form CC9 safely back to Earth? If so, in which compartment will it be placed? How did you decide? ______APPLYING YOUR DATA In 1831, Charles Darwin sailed from England on a ship called the HMS Beagle. You have studied the finches that Darwin observed on the Galápagos Islands. What were some of the other unusual organisms he found there? For example, find out about the Galápagos tortoise. ______

Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor. Holt Science and Technology 80 Classification TEACHERS RESOURCES Skills Practice Lab DATASHEET FOR LABBOOK Voyage of the USS Adventure

Teacher Notes TIME REQUIRED One 45-minute class period Georgiann Delgadillo East Valley School District LAB RATINGS Continuous Curriculum School Teacher Prep–1 Spokane, Washington Student Set-Up–1 Concept Level–2 Clean Up–1

PREPARATION NOTES Some students will find it easier to make the charts on graph paper, so you may wish to supply graph paper to students.

LAB NOTES Students should know that travel outside the solar system is not yet possible. This activity should help students categorize organisms or objects by noticing subtle differences. This activity is a good way to begin a study of classification of animals, rocks, or plants. This lab may be useful before introducing dichotomous keys, for example.