Nature of Science (Quiz Review)

independent variable 

• condition or factor that is manipulated by a scientist during an experiment. 
• experimental data collected through observation and measurement. 
• condition that is controlled so that it does not change during an experiment. 
• proposed explanation or answer to a scientific question. 

proposed explanation or answer to a scientific question.

• theory
• prediction
• scientific guess
• hypothesis

dependent variable 

• a well tested explanation for a wide variety of observations and experimental results. 
• condition that is controlled so that it does not change during an experiment.
• variable that is observed and changes in response to the variable manipulated by a scientist, variable that is measured.
• is a statement about an observed phenomenon or a unifying conceptproposed explanation or answer to a scientific question.condition that is 

observations and measurements recorded during an experiment. 

• results
• data
• procedures
• materials

using senses to study the world; using tools to collect measurements; examining previous research results. 

• observation
• objective
• organism
• review

What is a control variable?

• A variable the is changed by the action of the independent variable, and is measured.

• A variable that the scientist changes in an experiment

• A variable that does not change

• None of these

True or False: A scientist should conduct multiple trials of an experiment before considering their results to be valid.

• True

• False

HYPOTHESIS

• "if and then and must make sense!"

• "a way to do an experiment!"

Which one is the BEST hypothesis?

• If we decrease the amount of vinegar in the mixture, then the explosion will fly out of the room.

• If we decrease the amount of vinegar in the mixture, then the explosion height will be higher.

An organized way of gathering and analyzing evidence about the natural world. 

• biology
• science
• theory 
• law