Chemistry, 04.09.2019 21:20 ElegantEmerald

18. when we conduct an experiment the condition we are investigating the one thing we want to know about is called the
a. question
b. hypothesis
c. control group
d. variable
19. the group of experimental subjects that is left “natural” or left unchanged is called the
a. control group
b. experimental group
c. hypothetical group
d. testable group
20.the group of experimental subjects that has the one condition changed is the
a. control group
b. experimental group
c. hypothetical group
d. testable group
21. when the experiment is complete the researcher
a. starts another experiment
b. researches new questions
c. analyzes the data and comes to a conclusion
d. repeats the experiments for validity

Answers: 2

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