The Scientific method
1) What does IPC stand for?

 
 
 

2) If you did an experiment to test the effects of sunlight on the health of a plant, list two things each you could measure for each category:

Qualitative: a) b)
 
 

Quantitative: a) b)
 
 
 

3) Units – Fill in the blank

Variable Units Instrument Example

Length__________________________a person’s height, size of atoms
 

Area_____________ruler, tape measure_____________
 

__________Liters, Gallons, mm3_____________blood to donate, chemicals
 

__________Minutes, Secondsclock, stop watch_____________
 

Temperature_____________thermometer_____________
 

__________grams, lbs, kg_____________body weight, bar of gold
 
 
 

4) What is a derived unit?  Give one example of a derived unit.
 
 
 
 
 
 
 

5) Identify which step of the Scientific Method is represented by the following statements.

(Steps: make an Observation, ask a Question, Research at the library, form a Hypothesis, perform an Experiment, Analyze the data, make a Conclusion)

_________________ - A doctor notices that many patients are coming into her office with a rare form of cancer.

_________________ - The disease is caused by a virus.

_________________ - What has already been learned by other doctors about this cancer?

_________________ - The doctor asks each of the patients if they had any contact with one another or ate at the same place, etc.

_________________ - Of the 65 patients, 42 of them had a blood transfusion in the past 5 years.
 

6) For the experiment with the plant/sunlight we discussed in class:

a) What was the experimental variable?
 

b) What was/were the dependent variable(s)?
 

c) What were the control variables? (give three examples)
 

7) Why do we only test one experimental variable at a time in an experiment?
 
 
 
 

8) Why are experiments not considered failures?
 


Copyright Alexplorer. Some items taken from or adapted from other materials. This page is free for use in a classroom setting.
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