scientific method

A possible explanation for a problem that has not yet been tested is known as a ___________.

• data

• theory

• hypothesis

• fact

Which type of variable in an experiment is the one being deliberately changed by the scientist?

• dependent variable

• independent variable

• data

• constants

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

• yes
• no

The summary at the end of an experiment that explains the results is known as a ______________.

• conclusion

• procedures

• materials

• responding variable

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

• scientific method
• recipe
• data collection
• metric system

A list of the steps anyone could follow to conduct an experiment. 

• obervations
• question/problem
• materials
• procedures

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. What type of variable is the fertilizer?

• Dependent
• Independent
• Control
• Compound

True or False: Your hypothesis can never be wrong.

• True
• False

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

• yes
• no