PS Topic Reviews

____ involves evaluating observations and data to reach a conclusion about them.

• Classifying

• Predicting

• Analyzing

• Inferring

Scientists make ____ to help them study things that cannot be observed directly.

• Predictions

• Models

• Conclusions

• Observations

A ____ observation involves descriptions that cannot be expressed in numbers.

• Qualitative

• Quantitative

____ are attempts to explain what has already happened.

• Classifying

• Predictions

• Analyzing

• Inferences

____ is one way scientists organized data from an experiment.

• Classifying

• Predicting

• Analyzing

• Inferring

Scientific reasoning is characterized by ____ reasoning.

• Objective

• Subjective

• Faulty

All scientific investigations involve collecting relevant ____ to support researchers’ conclusions.

• Pseudoscience

• Subjective reasoning

• Empirical evidence

• Data

Pseudoscience is based on ____.

• Objective reasoning

• Subjective reasoning

• Faulty reasoning

To test a hypothesis, a scientist purposely changes the ____ variable.

• Dependent

• Independent

A hypothesis can be accepted as true after ____ repeated trials have been preformed.

• 1

• 2

• 3

• Many