Scientific Method Practice

Why do scientists practice the scientific method?

• It doesn't really work, they just do it out of habit.

• Because it is often the easiest way to do an experiment.

• To earn more money.

• To learn the truth about something in nature.

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In the FIRST step, scientists do this about something they observe.

• Come to a conclusion.

• Ask a question.

• Construct a hypothesis.

• Conduct an experiment.

A hypothesis is an educated what?

If plants are exposed to sunlight, then they will grow taller.
What part of the scientific method is this an example of?

• Procedure
• Hypothesis
• Question
• Results

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In a controlled experiment, how many variables can be worked with at a time? 

• one
• none
• two or more
• how ever many makes sense.

Anything that can change in an experiment.  There are three types of these in an experiment.

• variables
• constant
• independent
• dependent

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Which of the following is NOT a characteristics of a hypothesis?

• Must be made with background knowledge

• Must be testable

• Must make a prediction

• Must always be correct

• Must include the IV and DV

In a hypothesis written in the "If, then" format, which variable comes first?

• Independent
• Dependent

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If I add sliced garlic to my aquarium water, then my fish will eat more fish food. The IV in this hypothesis is:

• Adding garlic to the aquarium

• The amount of food eaten

• The fish

• The type of aquarium

A hypothesis must be based on measurable testable criteria. You can not measure "best", "good" or "nicest".

• True

• False

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