(conditional) independent variable
(science
Variable
Hypothesis
experiment )
scientific method
dependent variable
control set up
(observation)

(theory)
(tangible)
(control)
(subjective)
(conclusion)
(law)
(objective)
(placebo effect )
(constant )
(placebo)

research
safety
analyze
knowledge
phenomena
facts
policy

There are many ways of knowing, but the one based on (1) is known as (2). (2) is (3), not based on opinion, tastes, beliefs, or feelings. The opposite of (3) is (4). (2) is both a way of finding out how everything works and the (5) we gather from following its method.
The (6) is a good problem solving strategy. You may find problems/questions by (7) the world around you. Once the problem/question is identified, conduct a little (8) to gather some (1) regarding the situation. This may not give you a solution; but will help you come up with a (9) to test. A (9) can be written as a (10) or “if…, then…” statement. The test is also called an (11) in which there are (12) which change and (13) which don’t. You can choose an (14) to see how it affects the (15). You may only have one (14), if you want your test to be a (16) and reliable, everything else must remain (13). For comparison you need a (17), an (11) without an (14). For example, in medicine to account for the (18), the psychological (19) which makes people feel better even though they have not really been given any medication; a (20) or “sugar pill” is given to some patients. After you (21) your results; your (22) could be a (23) if it explains or a (24) if it describes the observed (19).
Although the main purpose of the (11) is to gather evidence or (1) to be used to answer your initial question (it helps if you evidence/(1) are (25) and can be measured); the most important aspect of conducting (11) is your (26). Many discoveries obtained this way have elicited the government or society to come up with (27) to regulate the ethics of implementing these discoveries and solutions.
Write the word that fills each blank in the space provided. You will notice that some numbers repeat; that means it is the same word that completes that blank. Do not write the word again. There are 27 different answers (27 blanks for 27 words). Be careful some words need to be capitalized, others don't; some words need to be plural, others don't; some words may be a different verb tense; and yes, spelling counts.
Note: this is a timed quiz. You may check the remaining time you have at any point while taking the quiz by pressing the keyboard combination SHIFT, ALT, and T... Again: SHIFT, ALT, and T...