The first step is to _____ a hypothesis., release, record, track, form, I _____ the substance under the microscope., got rid, placed, recorded, formed, When did you carry _____ the experiment?, off, in, over, out, The substance _____ in the water., released, got rid of, dissolved, added, The scientists _____ their eating habits over six months., tracked, proved, rewarded, submitted, We _____ an experiment to test the effects of heat., formed, designed, dissolved, placed, The action _____ a chemical reaction., did, added, proved, created, He _____ the results of the experiment., looked, carried out, analyzed, placed.

Perspectives 3. Workbook. Unit 5A. p.50 Exercise 3

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