1. Science TAKS: Bell Ringers Prepared for the Scurry-Rosser High School Science Department Objective 1, B.02D communicate valid conclusions

2. #1) The table shows environmental factors and soybean production for three regions. Which of the following probably accounts for the decrease in soybean yield in Region 1? A. High levels of ozone damaged the soybean plants, decreasing the average yield. B. Low rainfall amounts failed to meet the plants’ moisture needs and inhibited growth. C. Poor mineral levels found in the soil in that region limited the soybean harvest. D. Higher-than-normal rainfall increased pest activity, decreasing the average yield. Study Region123 Soil TypeLoam/Clay Year199819992000199819992000199819992000 Annual Rainfall (centimeters) 123134122120132117132136115 Average O 3 Level (parts/million) 0.040.080.090.08 0.070.100.080.06 Average Crop Yield (bushels/acre) 342826282729252831 State Average: 42% correct

3. #2) A certain commercial product used for cleaning ovens must be handled with rubber gloves. The product is slippery and turns litmus paper blue. It probably contains: F. an acid G. a base H. a salt J. an isotope State Average: 44% correct

4. Trade winds blow from east to west across the Pacific Ocean. The winds move surface waters westward across the ocean. This causes deeper, colder water to rise to the surface along the coast. This upwelling of deep ocean waters brings with it nutrients that would otherwise lie near the bottom of the ocean. #3) Which of the following conclusions is supported by the information above? A. Trade winds help maintain some food chains. B. Trade winds produce useful minerals in some oceans. C. Trade winds can reverse parts of the water cycle. D. Trade winds may be able to reduce greenhouse gases. State Average: 37% correct

5. #4) Boiling water can be used to sanitize dishes. The data below show how sanitizing time varies in different locations. Which inference is supported by these data? F. The boiling point of water is constant at higher altitudes. G. The boiling point of water is affected by elevation. H. Water takes longer to boil at Fort Davis than at sea level. J. Boiling water changes temperature at a faster rate at Corpus Christi than at higher elevations. LocationCorpus ChristiFort DavisLipscomb Latitude27 o 48’N30 o 35’N36 o 14’N Longitude97 o 24’W103 o 54’W100 o 16’W Elevation (m)0 (sea level)1494728 Sanitizing Time (min)202522 Boiling Point of Water ( o C)100.095.097.6 State Average: 59% correct

6. Conclusion: Hearing aids are an effective way to treat hearing loss. #5) A study was conducted to test the effectiveness of hearing aids. People with different types of hearing loss where included in the study. Which question would help in determining whether the conclusion was valid? A. What was the average age of the people in the study? B. What was the most common occupation of people in the study? C. How many people were included in the study? D. How many people in the study had vision problems? State Average: 64% correct

7. TAKS Question Set 2 Answers #1A #2G #3A #4 G #5C