Scientific Method (Quick Review)

What is the first step in the scientific method?

• Make an observation --> Question
• Design and conduct an experiment
• Make an hypothesis
• Share your results

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A testable prediction about a scientific investigation is a(n)

• Question
• Observation
• Hypothesis
• Experiment

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Scientists create both scientific theories and scientific laws as they make observations and conduct experiments about the natural world. Which of the following statements most accurately compares the difference between scientific theories and scientific laws?

• Scientific laws are based on evidence, while scientific theories are not.

• Scientific theories involve only biology, while laws involve all types of science.

• Scientific theories involve mathematical equations, while scientific laws are based on observations.

• Scientific theories are ideas that explain natural events, while scientific laws more reliably predict natural events.

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Which of the following ways describe how scientific theories and scientific laws are alike?

• Both scientific theories and scientific laws explain why events occur in nature.

• Both scientific theories and scientific laws can be modified if new evidence is discovered.

• Both scientific theories and scientific laws are accepted by only the minority of scientists in their field.

• Scientific theories and scientific laws are not alike in any ways.

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Which of the following is supported by lots of evidence?

• Theory

• Law

• Both

• Neither

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Which of the following tells what happens every time under certain conditions?

• Theory

• Law

• Both

• Neither

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Research Question: Does the type of gasoline put in a car effect how fast the car can drive?

What is the independent variable?

• Type of gasoline
• which car the gas is put into
• how fast the car can drive
• how much gas is put into the car

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What is the DEPENDENT variable (effect) in this experiment?

"Does eating breakfast improve test scores?"

• eating breakfast or not

• the grade you got on the test

• what time you get up in the morning

• how tasty the breakfast is

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What is the variable called that is used for comparison (does not change)?

• Changed

• Control
• Independent Variable
• Dependent Variable

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A series of steps used by scientists to solve a problem or answer a question.

• scientific method

• recipe

• data collection

• metric system

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