Ch. 1 Review

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

• data
• theory
• hypothesis
• fact

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

• dependent variable
• independent variable
• data
• control group

There are two types of data. Which type of data involves numbers that are obtained by counting or measuring?

• quantitative
• qualitative

The summary at the end of an experiment that explains the results. 

• conclusion
• procedures
• materials
• responding variable

There are two types of data. Which type of data involves descriptions/photographs/illustrations that cannot be counted or measured?

• qualitative
• quantitative

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

• scientific method
• recipe
• data collection
• metric system

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

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

Two types of data scientists collect are...

• hypothesis and theory
• qualitative and quantitative
• myths and fables
• metric and standard measurements

Measuring the number of times a person breathes after exercise involves ____ data. 

• quantitative
• qualitative

Mr. S. sets up an experiment to see how the mass of a ball affects the distance it rolls off a ramp.  Identify the independent variable.

• distance traveled by the ball
• height of the ramp
• mass of the ball
• weight of the ball