What Is Biology?

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      Name                                                               Date           Period      Workbook Activity
                                                                                                                           1
                                                                                                    Chapter 1, Lesson 1

      What Is Biology?

      Directions Write the letter L by the activities of organisms. Write NL if the activity
      is not part of an organism's life.

       _____ 1. A squirrel buries an acorn.
       _____ 2. An electric fan cools the room.
       _____ 3. A catfish rests on the bottom of a pond.
       _____ 4. Leaves fall from a tree in autumn.
       _____ 5. Snow falls on rooftops.

      Directions Write the letter B by statements that describe the work of biologists.
      Write NB by other statements.

       _____ 6. Identify migrating birds in a region
       _____ 7. Track the activities of a comet in the sky
       _____ 8. Analyze rocks to find out what minerals they contain
       _____ 9. Study the way a germ causes disease
       _____ 10. Create data tables of the numbers and kinds of fish caught
                 in a stream over a 10-year period

      Directions Descriptions of the events in the life cycle of a frog are listed below. Read the
      descriptions. Determine what happens next in the cycle after a female frog lays eggs. Write
      the correct letter on the line next to item 11. Do the same for items 12, 13, 14, and 15.
        A an adult frog moves out of the water and onto land
        B a legless tadpole emerges from an egg
        C an egg begins to hatch
        D hind legs grow longer and front legs appear on the tadpole
         E hind legs begin to grow on a legless tadpole


                                                      A female frog lays eggs.
            15. _______                                                                           11. _______

                                     14. _______                                    12. _______

                                                              13. _______


      AGS Publishing. Permission is granted to reproduce for classroom use only.                        Biology: Cycles of Life
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      Name                                                               Date            Period           Workbook Activity
                                                                                                                                  2
                                                                                                          Chapter 1, Lesson 2

      Energy and Growth Cycles

                                                                        Word Bank
                    cycles             energy                heat              law of conservation of energy          sun


       Directions Choose the word or words from the Word Bank to complete each
       sentence.
        1. The _________________________________________ states that energy cannot
             be created or destroyed.
        2. The ability to walk and talk depends on __________________________.
        3. The ____________________________________ is the earth's source of energy.
        4. Energy _____________________________________ through different life forms.
        5. As energy is transformed, some is changed to ______________________________.


       Directions Write the answer that completes each sentence on the line.

        6. ________________ carries instructions for life.
           A Energy           B An atom                C DNA                                          D ATP

        7. During ________________, a living thing makes new life.
           A reproduction     B growth              C respiration                                     D photosynthesis

        8. The smallest units of life are ________________.
           A compounds             B cells             C molecules                                    D atoms

        9. Cells make ________________, molecules that help them work.
           A proteins          B oxygen             C energy                                          D carbohydrates

       10. Birth, growth, and death are part of a normal ________________.
             A law of thermodynamics                                           C law of segregation
             B cycle of life                                                   D lunar cycle




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      Name                                                               Date       Period   Workbook Activity
                                                                                                                    3
                                                                                             Chapter 1, Lesson 3

      Evolutionary and Ecological Cycles

      Directions Read each statement. Unscramble the letters in parentheses and write
      the term on the line.

        1. Over time, life changes in a process called ______________________. (tonevioul)
        2. Dinosaurs became __________________ after their environment changed drastically. (ntectix)
        3. The _______________________ of a crayfish is a creek. (metnonvenri)
        4. The webbed feet of a duck are a(n) ______________________ for swimming. (tandatoaip)
        5. A male rabbit and a female ground hog cannot produce offspring because they are not
             the same ______________. (ipcesse)
        6. Water, soil, plants, animals, and wind are part of the ___________ of a pine tree. (yesmestoc)
        7. The odor of bread is a ____________ that can make a person's mouth water. (milsusut)
        8. The sudden appearance of a new kind of disease-causing germ is an
             example of _________________________________. (cipsitonae)

      Directions Read each question, then answer it with complete sentences.

        9. In the desert, hawks hunt for mice. Which color mouse would you consider to be best
             adapted for life in the sandy desert: a light-colored mouse or a dark-colored mouse?
             Explain your answer.




      10. Describe one adaptation that an animal might have for living in a very cold environment.




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      Name                                                               Date       Period   Workbook Activity
                                                                                                                    4
                                                                                             Chapter 1, Lesson 4

      The Scientific Method

      Directions Choose the term from the Word Bank that completes each statement
      correctly. Write the answer on the line. A term may be used more than once.

                                                                 Word Bank
                analyzed                            experiment         observations             scientific method
                communicated                        experimental       question                 theory
                data

        1. A logical method that can be used to solve a problem is the ___________________________.
        2. In an experiment, there are two groups. The ______________________________ group
             contains a variable to be tested.
        3. Information gathered in an experiment is __________________________________________.
        4. A(n) ____________________________ helps explain observations or events.
        5. Before an explanation can be accepted, scientists must perform a(n) ________________________.
        6. New ideas for experiments often come from __________________________________.
        7. The first step in problem-solving is to develop a ____________________________________.
        8. A(n) _________________________ is a procedure designed to test possible answers to questions.
        9. After an experiment, data must be __________________________________ to interpret it.
      10. Results of experiments are ___________________________ to let others know about the findings.


      Directions Read each question. Circle the correct answer.

      11. You notice that the number of yellow butterflies in your neighborhood decreases
             from one summer to the next. You suggest that pesticide used in gardens may be poisoning
             the butterflies. Your guess is called a(n) (experiment, hypothesis, conclusion).
      12. You want to know whether white plastic grips on bicycle handlebars heat up faster than black
             plastic grips. You devise a(n) (data table, experiment, hypothesis) to put white and black bicycle
             grips in the sun for one hour. At the end of the hour, you take the temperature of each grip.
      13. In the bike grip experiment, you use the computer to create a graph of the
             (data, experiment, hypothesis) you collect.
      14. You are interested in bike grips because you have (observed, concluded, analyzed)
             that they are too hot to handle immediately after school each day.
      15. You want to share you findings about bike grips with your friends. You (experiment on, create
             a law on, communicate) what you learned in your experiment in the neighborhood newsletter.


      AGS Publishing. Permission is granted to reproduce for classroom use only.                 Biology: Cycles of Life
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      Name                                                               Date             Period       Workbook Activity, Page 1
                                                                                                                                   5
                                                                                                               Chapter 1

      Chapter 1 Vocabulary Review

      Directions Match each term in Column A with its meaning in Column B. Write
      the letter on the line.

                        Column A                                             Column B
       _____ 1. adaptation                                             A a living thing

       _____ 2. analysis                                                B to change form

                                                                        C the changes in a population over time
       _____ 3. cell
                                                                       D a chemical that contains instructions for life
       _____ 4. cycle
                                                                        E an adjustment to environmental conditions
       _____ 5. data
                                                                        F    an organism's surroundings
       _____ 6. DNA                                                    G the study of interactions of living and nonliving things
       _____ 7. ecologist                                                    in the environment
                                                                       H all of the living and nonliving things in the
       _____ 8. ecology
                                                                             environment
       _____ 9. ecosystem                                               I    information collected from experiments
       _____ 10. environment                                            J    the basic unit of life
       _____ 11. evolution                                             K a person who studies living and nonliving things in
                                                                             an area
       _____ 12. organism
                                                                        L anything to which an organism reacts
       _____ 13. scientific method
                                                                       M a course or series of events or operations that repeat
       _____ 14. stimulus                                                    and usually lead back to the starting point

       _____ 15. transform                                             N making sense of experimental results

                                                                       O a logical way of problem-solving



      Directions Unscramble the word or words in parentheses to complete each
      sentence. Write the answer on the line.

      16. A(n) _______________________________________ is an educated guess of the answer
             to a question. (poisystheh)
      17. A(n) _________________________ is a well-tested explanation that makes sense of several
             scientific observations. (yohetr)


      AGS Publishing. Permission is granted to reproduce for classroom use only.                              Biology: Cycles of Life
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