Practice - Macmillan/McGraw-Hill

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Name specimens erupted murky dormant biology scoured research observer Choose the word that best replaces the underlined word or words. Then write the word on the line. Practice Vocabulary 1. If you are curious about the study of living things, you can make amazing discoveries. 2. First you must become someone who watches everything around you. 3. Your investigations might take you to a park or even to a lake, where you can study life under the water. 4. Sometimes a lake will look as though it has no activity, but it is really fi lled with life. 5. In the water you may fi nd minerals to be cleaned back in the lab. 6. Even if the water is thick and dark, you will probably fi nd something fascinating. 7. Take samples of the water so that you can study them under a microscope. 8. You may fi nd evidence that a volcano exploded or evidence of other natural 214 events in your water samples. Hidden Worlds • Grade 5/Unit 6 © Macmillan/McGraw-Hill
© Macmillan/McGraw-Hill Name Events or steps usually happen in sequence or in a particular order. If you can recognize and follow the sequence, you will better understand what will happen next. Words such as first, then, next, now, and finally help signal the order in which events or steps occur. Read the scientific method. Label each step of the scientific method below. Practice Comprehension: Sequence Scientifi c method is specifi c steps scientists take during an experiment. Scientists try to answer questions they have by performing several tests. By following a specifi c sequence during different experiments, they are able to determine the answers to their questions. 1. Initial or First Observation: Scientists notice something and wonder why. 2. Gather Information: Scientists try to fi nd out more. 3. Hypothesis: Scientists take their initial observation and create a question that can be tested. A hypothesis should make a prediction of the outcome. 4. Testing: Scientists will perform experiments and record data. 5. Draw a Conclusion: Using the information from their tests, scientists will compare this data to their hypothesis to see if their prediction is correct or not. 1. Finally I conclude my hypothesis was correct. The birds made a nest to hold their eggs. 2. Then I learned more from a book about birds laying eggs in the spring. 3. First I see two blue birds. One is fl ying from tree to tree. The other is gathering twigs. It is springtime. 4. Next I observe the birds for a week. They choose a large tree branch. The birds gather more twigs and start building a nest. I see three bird eggs. 5. I predict the birds will make a nest to hold their eggs. At Home: Write a paragraph explaining why it is important for scientists to follow a specifi c sequence. Hidden Worlds • Grade 5/Unit 6 215
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