Question

1. which basic principle of science would this example be? \a scientist conducts multiple tests to ensure the results are consistently reproduced.\ a. empiricism c. repeatability b. uncertainty d. proof is elusive 2. which of these examples would be considered an engineering practice? a. ensure questions are specific and measurable. b. construct explanations supported by evidence. c. ask questions based on observations. d. use mathematics and computational thinking. 3. when a scientist makes a claim, which of the following is most essential to include in his or her explanation? a. evidence c. his or her opinion b. alternative claims d. the steps of the scientific method 4. identify which statement is an example of deductive reasoning. a. it takes one year for the earth to revolve around the sun. b. birds appear and disappear as the year goes by. c. continents shift slowly around earth’s surface due to plate tectonics. d. plants need light to conduct photosynthesis.

Explanation:

1. Conducting multiple tests for consistent results is about repeatability. Empiricism is about knowledge from experience, uncertainty is about not - knowing precisely, and proof being elusive is about difficulty in absolute proof.
2. Using mathematics and computational thinking is an engineering practice as engineers often use math and calculations to design and solve problems. The other options are more related to scientific inquiry in general.
3. When making a scientific claim, evidence is most essential as it supports the claim. Opinions are not sufficient, alternative claims are not necessary to include in the initial explanation, and while the scientific method steps are important, evidence is key for the claim.
4. Deductive reasoning goes from general to specific. The statement that plants need light to conduct photosynthesis is a general principle (plants need light for a specific process) and is an example of deductive reasoning. The other statements are more observational or factual statements.

Answer:

1. c. repeatability
2. d. Use mathematics and computational thinking
3. a. evidence
4. d. Plants need light to conduct photosynthesis