Question

name: b217b4r720 due (10/2) directions: fill in the blank. 1. ___ uses words to describe what is observed in an experiment. 2. _ are the factors in an experiment that do not change. they are also referred to as controlled variables. 3. a(n) _ is a rule that describes a repeatable pattern in nature. 4. a(n) _ is a spoken or written summary of observations. 5. _ is a method of writing or displaying very small or very large numbers in a short form. 6. a(n) _ is the result of using one or more senses to gather information and take note of what occurs. 7. a(n) _ is a possible explanation for an observation that can be tested by scientific investigation. 8. in a controlled experiment, the _ is used to study how a change in the independent variable affects the dependent variable. 9. in a controlled experiment, the _ contains the same factors as the experimental group, but the independent variable isnt changed. 10. _ uses numbers to describe what is observed in an experiment. directions: place the following in correct order/sequence, according to the \scientific method\ a. draw conclusions b. analyze results c. ask questions d. communicate results e. test hypothesis f. hypothesize & predict 11. → 12. → 13. → 14. (e) → 15. → 16. directions: choose the best possible answer. 17. a(n) _ is an experiment or observation designed to minimize the effects of variables other than the independent variable. a. uncontrolled experiment b. controlled experiment c. dependent variable d. scientific theory 18. the ___ is the factor you observe or measure in an experiment to determine whether or not your hypothesis is supported. a. independent variable b. dependent variable c. hypothesis d. conclusion

Explanation:

1. Fill - in - the - blank answers:

• Qualitative data uses words to describe what is observed in an experiment.
• Constants are the factors in an experiment that do not change.
• A scientific law is a rule that describes a repeatable pattern in nature.
• A conclusion is a spoken or written summary of observations.
• Scientific notation is a method of writing or displaying very small or very large numbers in a short form.
• An observation is the result of using one or more senses to gather information and take note of what occurs.
• A hypothesis is a possible explanation for an observation that can be tested by scientific investigation.
• In a controlled experiment, the experimental group is used to study how a change in the independent variable affects the dependent variable.
• In a controlled experiment, the control group contains the same factors as the experimental group, but the independent variable isn't changed.
• Quantitative data uses numbers to describe what is observed in an experiment.

1. Order of scientific method: First, we ask questions (C) to identify a problem. Then we hypothesize & predict (F) by making an educated guess. Next, we test the hypothesis (E) through experiments. After that, we analyze the results (B) to look for patterns. Then we draw conclusions (A) based on the analysis. Finally, we communicate the results (D) to share our findings.
2. Multiple - choice answers:

• A controlled experiment is an experiment or observation designed to minimize the effects of variables other than the independent variable, so the answer to 17 is B.
• The dependent variable is the factor you observe or measure in an experiment to determine whether or not your hypothesis is supported, so the answer to 18 is B.

Answer:

1. Qualitative data
2. Constants
3. Scientific law
4. Conclusion
5. Scientific notation
6. Observation
7. Hypothesis
8. Experimental group
9. Control group
10. Quantitative data
11. C
12. F
13. E
14. B
15. A
16. D
17. B. controlled experiment
18. B. dependent variable