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Question Hypothesis Data analysis conclusion

1. Jennifer wants to know which of three light bulbs lasts the longest. In her lab journal she writes: “The light bulb with the lowest wattage will last the longest.” Which part of the investigation has she written?. Question Hypothesis Data analysis conclusion. 29.

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Question Hypothesis Data analysis conclusion

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  1. 1. Jennifer wants to know which of three light bulbs lasts the longest. In her lab journal she writes: “The light bulb with the lowest wattage will last the longest.” Which part of the investigation has she written? • Question • Hypothesis • Data analysis • conclusion 29

  2. 2. Which part of an experimental design includes the variable that is changed during an experiment? • The control group • The dependent variable • The responding variable • the independent variable 30

  3. 3. You are conducting an experiment in which you measure a person’s body temperature in response to changes in air temperature. What is the independent variable that is manipulated in this experiment? • Air temperature • Size of the person • Person’s body temperature • Size of the room the person is placed in

  4. 4. What do repeated trials in an experiment allow a scientist to do? • Choose different dependent variables • Check the accuracy of the experimental results • Make changes in results that do not support a hypothesis • Change a hypothesis to support the results

  5. 5. Alison measured the mass of a sample as 3.12 kg. Which is another way to write this measurement? • 312 g • 3120 g • 312 mg • 2130 mg

  6. 6. Sam measured the growth of four plants over a three week period. Plant 1 had a total growth of 3 cm. Plant 2 had a total growth of 2 cm. Plant 3 grew a total of 5 cm, and plant 4 grew a total of 3 cm. What is the average growth of all the plants? • 2.5 cm • 3 cm • 3.25 cm • 4 cm

  7. 7. Which tool is used to measure a volume of liquid? • Graduated cylinder • Pan balance • Computer • stopwatch

  8. 8. Cara wants to compare the masses of two different mineral samples. Which would be the BEST tool to use? • Pan balance • Beaker • Meter stick • Graduated cylinder

  9. 9. The weight of an object is measured with • A spring scale • A thermometer. • A pan balance • A graduated cylinder

  10. 10. Dylan is collecting data about the hardness of mineral samples. He wants to display the hardness of each sample on a scale of 1 to 10. His data can be BEST represented visually in a • Line graph • Circle graph • Bar graph • Written report

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