Question: What is required of a scientific result?

Answer: 1. It must be open to revision in the light of new data.

2. it has been tested using the scientific method.

Question: A good scientific experiment is reproducible. What does this mean?

Answer: Anyone can conduct the same experiment in another lab and expect the same results.

Question: What distinguishes scientific results from nonscience-based claims?

Answer: Scientific results have undergone systematic and critical testing.

Question: What are some phases in LearnSmart Labs’ 4-phase model of the scientific method?

Answer: experiment, hypothesis.

Question: What do you do in each phase?

Answer: 1. Hypothesis - create a strategy formulate a hypothesis

2. Experiment - carry out the strategy collect measurements.

3. Analysis - draw graphs, evaluate the hypothesis.

4. Report - document your results; compose a report.

Question: When you formulate your hypothesis, it is important to be sure that it is an idea that can be ___

Answer: tested by scientific experiment.

Question: Suppose you study how speed affects the braking distance of a car. Match each part of the hypothesis phase with its output.

Answer: 1. Formulate the hypothesis - Braking distance grows proportionally with speed.

2. Choose a scope - We will focus on how braking distance depends on speed.

3. Make a strategy for testing the hypothesis - We will brake at various speeds but keep the car and other factors constant.

Question: Why is a good experimental design more important than a true hypothesis?

Answer: Because a good experiment yields information even when the hypothesis is disproved.

Question: Suppose your hypothesis is: “Braking distance grows linearly with speed.” What is the independent variable?

Answer: Speed

Question: What do you do in the LabSmart’s hypothesis phase?

Answer: 1. formulate a hypothesis

2. make a strategy for the experiment.