Scientific investigation skills

The X axis is labeled with, (a)  

• the control variable
• the independent variable
• the sample variable
• dependent variable

The Y axis is labeled with the (a)  

• control variable
• independent variable
• sample variable
• dependent variable

Look at the line graph.  Which statement is consistent with the line graph?

• The ability of air to hold moisture increases as temperature increases.
• The ability of air to hold moisture decreases as temperature increases.
• The ability of air to hold moisture decreases and then increases as temperature increases.
• The ability of air to hold moisture stays the same regardless of temperature. 

A variable that a scientist controls/manipulates in (a)  

• Independent variable
• Dependent variable
• Constant
• s

Which step of the scientific method uses an "If...Then..." statement to provide a possible answer to the question?

• Purpose

• Research

• Hypothesis

• Conclusion

How many variables can you change in a controlled experiment?

• 1

• 3

• 5

• 7

What is the independent variable in the following hypothesis?
HYPOTHESIS: If I spend more time studying, then my grades in science will improve.

• An improvement in grades
•  Location for studying science
• Time spent studying
•  Playing soft music in the background

What is the dependent variable in the following hypothesis?

HYPOTHESIS: If I add fertilizer to my flowers, then the flowers will grow taller.

• Fertilizer
• Flower height
• Number of blooms on each plant
• Amount of time flowers took to bloom

A variable that a scientist measures/observes in an experiment; the variable that responds

• independent variable

• dependent variable

• constant

• hypothesis

Which type of variable must always stay the same in order to make the experiment accurate?

• Controlled Variable

• Manipulated Variable

• Dependent Variable

• Responding Variable