Comm. Bio. - Midterm Exam '23

How many variables should be tested at a time?

• Three

• Two

• One

A test or trial to discover something unknown

• Data

• Experiment

• Hypothesis

A problem for discussion or investigation

• Prediction
• Compare
• Classify
• Question

What is the first step in the scientific method?

• Make an observation/question
• Design and conduct an experiment
• Make an hypothesis
• Share your results

Why do scientist use the scientific method?

• To make sure they get credit for their discoveries.
• To make sure their results are valid and can be performed by other scientists.
• So that other scientist don't get mad at them

A possible explanation to a problem that has not yet been tested. 

• data
• theory
• hypothesis
• fact

This part of the experiment serves as a basis for comparison to see how your outcome changed.

• experimental group
• control group
• data
• variables

This variable in an experiment is the one being intentionally changed by the scientist. 

• dependent variable
• independent variable
• data
• control group

___ are repeated over and over to see if the results are the same each time?

• Hypotheses

• Graphs

• Explanations

• Experiments

Which type of data in an experiment involves numbers that are obtained by counting or measuring?

• appearance

• qualitative

• quantitative

• averages