Question

scientific method worksheet
each sentence below describes a step of the scientific method. match each sentence with a step of the scientific method listed below.

1. stephen predicted that seeds would start to grow faster if an electric current traveled through the soil in which they were planted.
2. susan said, \if i fertilize my geranium plants, they will blossom.\
3. jonathans data showed that household cockroaches moved away from raw cucumber slices.
4. rene grew bacteria from the mouth on special plates in the laboratory. she placed drops of different mouthwashes on bacteria on each plate.
5. kathy used a survey to determine how many of her classmates were left - handed and how many were right - handed.
6. jose saw bats catching insects after dark. he asked, \how do bats find the insects in the dark?\
7. justin wondered if dyes could be taken out of plant leaves, flowers, and stems.
8. alice soaked six different kinds of seeds in water for 24 hours. then she planted the seeds in soil at a depth of 1 cm. she used the same

a. recognize a problem
b. form a hypothesis
c. test the hypothesis with an experiment
d. draw conclusions
a. recognize a problem
b. form a hypothesis
c. test the hypothesis with an experiment

Explanation:

• 7. Stephen made a prediction, which is forming a hypothesis.
• 8. Susan made an "if - then" statement, which is a hypothesis.
• 9. Jonathan has data from an action, which is drawing conclusions.
• 10. Rene set up an experiment with different mouthwashes on bacteria, which is testing the hypothesis with an experiment.
• 11. Kathy used a survey to gather information, which is testing the hypothesis with an experiment (survey is a type of data - gathering experiment).
• 12. Jose asked a question, which is recognizing a problem.
• 13. Justin had a wonder, which is recognizing a problem.
• 14. Alice performed an action on seeds, which is testing the hypothesis with an experiment.

Answer:

1. B. Form a hypothesis
2. B. Form a hypothesis
3. D. Draw conclusions
4. C. Test the hypothesis with an experiment
5. C. Test the hypothesis with an experiment
6. A. Recognize a problem
7. A. Recognize a problem
8. C. Test the hypothesis with an experiment