Chapter 2 Resource: Measurement - Learning Services Home

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Name Date Class (continued) Hands-On Activities 5. Before you begin, create a data table on a separate sheet of paper. Your group must decide on its design. Be sure to leave enough room to record the results for each person’s time. If more than one trial is to be run for each measurement, include room for the additional data. Follow Your Plan 1. Make sure that your teacher approves your plan before you start. 2. Carry out the experiment as planned and approved. 3. Be sure to record your data in the data table as you proceed with the measurements. Analyze Your Data 1. Graph your data. What type of graph would be best 2. Are your data table and graph easy to understand Explain. 3. How do you know that your measurements are precise 4. Do any of your data appear to be out of line with the rest Conclude and Apply 1. Explain how it is possible for different members of a group to find different times while measuring the same event. 2. Infer what tools would help you collect more precise data. 3. What other data displays could you use What are the advantages and disadvantages of each Communicating Your Data Make a larger version of your graph to display in your classroom with the graphs of other groups. For more help, refer to the Science Skill Handbook. Copyright © Glencoe/McGraw-Hill, a division of the McGraw-Hill Companies, Inc. 8 <strong>Measurement</strong>
Name Date Class Copyright © Glencoe/McGraw-Hill, a division of the McGraw-Hill Companies, Inc. 1 Laboratory Activity Mass and Weight Mass is the measure of the amount of matter in an object. Weight is the measure of the force with which one body is attracted toward another body. This force of attraction is called gravity. For example, the Moon is attracted toward Earth by Earth’s gravitational field. Likewise, Earth is attracted toward the Moon by the Moon’s gravitational field. Strategy You will measure the force of gravity on marbles. You will deduce the relationship between mass and weight. Materials rubber band (large, wide) plastic bottle (with handle) balance meterstick 12 glass marbles (large) scissors Procedure 1. Cut the rubber band. Attach one end to the handle of the bottle. 2. Measure the mass of the bottle and the attached rubber band in grams and record in Table 1. Lift the bottle using the rubber band. Measure the length of the rubber band in centimeters and record. 3. Place three marbles in the bottle. Measure the mass of the bottle with the three marbles in it and record. Lift the bottle and measure the length of the rubber band. Record. Data and Observations Table 1 Plastic bottle Bottle 3 marbles Bottle 6 marbles Bottle 12 marbles Mass (g) 4. Add three more marbles to the bottle and measure the mass of the bottle with the six marbles in it. Record in the table. Lift the bottle and measure the length of the rubber band. Record. 5. Add the remaining marbles and measure the mass of the bottle with the 12 marbles in it. Record. Lift the bottle, measure the length of the rubber band, and record. Length of the Rubber Band (cm) Hands-On Activities <strong>Measurement</strong> 9
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