Which statements about scientific explanations are true? I. Scientific explanations must prove that a hypothesis is true. II. Scientific explanations should be based on evidence or data. III. Scientific explanations must have logical and consistent arguments. IV. Scientific explanations should use scientific principles, models, and theories. A. I, II, III and IV B. I, II and III only C. II, III and IV only D. II and III only
Answers: 3
Chemistry, 22.06.2019 12:00, BreBreDoeCCx
Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal. b. he is determining chemical properties that are sufficient to identify the metal. c. he is determining physical properties that are insufficient to identify the metal. d. he is determining chemical properties that are insufficient to identify the metal.
Answers: 3
Chemistry, 23.06.2019 15:00, ctyrector
20 look at the clock and the data table below. based on the data and on your knowledge of potential and kinetic energy, what is the best conclusion you can make about potential and kinetic energy? the total amount of energy stays the same. the clock has the most potential energy at point b since it is moving the fastest. there is always more potential energy than kinetic energy. potential energy can never be 0, but you can have 0 kinetic energy.
Answers: 1
Which statements about scientific explanations are true? I. Scientific explanations must prove that...