**Introduction to Biology

Different types of  bushes are kept in a greenhouse to see which will produce the most flowers. The independent variable in this experiment is the

• greenhouse
• types of bushes
• oxygen
• carbon dioxide

Different types of bushes are kept in a greenhouse to see which will produce the most flowers. The dependent variable in this experiment is

• greenhouse

• number of flowers

• types of bushes

• oxygen

Which is NOT a step in the scientific method?

• Make observation
• Form a theory
• Collect data
• Form a hypothesis

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

• data
• theory
• hypothesis
• fact

The factors in an experiment that can be changed. 

• variables
• quantitative data
• hypothesis
• steps

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

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

This part of the experiment serves as a basis of comparison; the one variable being tested has been omitted. 

• experimental group
• control group
• data
• variables

This part of the experiment shows the effect of the one variable being tested. 

• control group
• experimental group
• quantitative data
• hypothesis

Tags

NGSS.HS-PS1-3

This variable is the actual data collected during the experiment. 

• independent variable
• dependent variable
• control group
• data group

Should experiments be repeated over and over to see if the results are the same each time?

• yes
• no