Scientific Inquiry

Question 1

Huan wants to enter the science fair at his school. He has a list of ideas for his project. Which questions could be answered through scientific investigation? Check all that apply.Does pressure have an effect on the volume of a gas?Which physicist was the smartest?Is the information on the periodic table difficult to understand?Which brand of soap is the best for cleaning grease off dishes?Which laboratory experiment is the most fun to perform?

Revolt · Accepted Answer

A: Does pressure have an effect on the volume of a gas?; D: Which brand of soap is the best for cleaning grease off dishes?

Question 2

Use the drop-down menus to match each part of the scenario to the correct scientific practice.

Revolt · Accepted Answer

Akira creates a reaction without a catalyst, then repeats the reaction with a catalyst.: performing an investigation; Akira turns in a written lab report to his science teacher.: communicating results; Akira wonders, "Will adding a catalyst speed up this chemical reaction?": asking a question; Akira writes in his notes that adding a catalyst sped up the chemical reaction because the catalyst lowered the activation energy needed to start the reaction.: providing explanations

Question 3

asking a question✔ performing an investigationcollecting dataproviding explanationscommunicating results

Revolt · Accepted Answer

B: performing an investigation

Question 4

In a laboratory, Nakisha mixes a sodium hydroxide solution with an indicator called phenolphthalein. When combined, they create a pink solution. Nakisha wonders if mixing other solutions with phenolphthalein will also create this pink color. How could Nakisha use the scientific inquiry process to determine whether mixing other solutions with phenolphthalein will also create a pink color? Check all that apply.by making qualitative observations about the sodium hydroxide and phenolphthalein in solutionby asking a classmate if sodium hydroxide turns pink when mixed with other solutionsby comparing the given solution to other familiar solutions containing phenolphthaleinby designing an experiment to test phenolphthalein with other solutionsby repeating the experiment at different temperatures

Revolt · Accepted Answer

A: by making qualitative observations about the sodium hydroxide and phenolphthalein in solution; C: by comparing the given solution to other familiar solutions containing phenolphthalein; D: by designing an experiment to test phenolphthalein with other solutions

Question 5

✔ independent variabledependent variablecontrol group

Revolt · Accepted Answer

A: independent variable

Question 6

Why are experimental investigations the best type of scientific investigation to demonstrate cause-and-effect relationships?

Revolt · Accepted Answer

idependent variable,dependent variable

Question 7

Why aren't descriptive investigations repeatable?

Revolt · Accepted Answer

It rely on single time observations

Question 8

Carlos is conducting an investigation in which he changes one variable and measures how it affects another. He also has one group that does not receive the factor being tested.

Revolt · Accepted Answer

C: experimental

Question 9

Which points did you include in your response? Check all that apply.

Revolt · Accepted Answer

A: They provide a large amount of information.

Question 10

asking a questionperforming an investigationcollecting dataproviding explanations✔ communicating results

Revolt · Accepted Answer

E: communicating results

Scientific Inquiry Answers

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