Scientific Method

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

• data
• theory
• hypothesis
• fact

Anything that may affect the results of an experiment 

• variables
• quantitative data
• hypothesis
• steps

This variable in an experiment is the one being deliberately changed by the scientist.  It is the only variable that is different between groups.

• dependent variable
• independent variable
• data
• control group

What is the variable that we are measuring and collecting data about in an experiment?

• Independent
• Dependent
• Control
• Experimental

The name of the information that you get from your experiment (you organize it into charts and graphs).

• observations
  conclusion
• data
• variables
• hypothesis

What is the best written dependent variable for this hypothesis:

 "If I add salt to the plant, then it will grow taller."

• grow taller
• plant growth

• amount of salt
• add salt

A student is planning an experiment to find out how the height from which he drops a ball affects how high the ball bounces. The dependent variable is the _____.

• Diameter of the ball
• Force acting on the ball
• Height that the ball bounces
• Height from which the ball is dropped

When experimenting with the growth of a plant, a scientist uses three (of the same type of) plants, two different fertilizers, equal light, and equal water. The fact that we kept the light, plant, and water the same in each experiment are examples of ____________.

• an dependent variable
• an independent variable
• a control
• constants

Question: Does the flavor of ice cream effect how fast the ice cream melts?

• independent
• dependent

Does the type of shoe worn during a 30 meter dash affect the speed of the runner?

• independent
• dependent