IS IT RADIOACTIVE (Radiation Hunt)?               NAME(s): ________________________

Academic Standards:  3.4, 3.5, 3.6, 3.7, 3.8                          PERIOD: ____   DATE: ________ Score: __________

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SELECT AND DETERMINE IF THE OBJECTS ON YOUR TRAY ARE RADIOACTIVE.  WORK TOGETHER AS A TABLE.

MEASURE THEM IN ANY ORDER, BUT PUT THE DATA ON THE APPROPRIATE LINE.

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SAMPLE
OBJECT

DESCRIPTION
 OF OBJECT

DISTANCE

     IN CM.

MEASURED
COUNT RATE
   PER MIN

BACKGROUND

COUNT RATE*

CLASS AVERAGE

DUE TO OBJECT   COUNT RATE

DETECTABLY
RADIOACTIVE?
VERY/SLIGHTLY/NON

1

 

 

 

 

                            

 

 

2

 

 

 

 

 

 

 

3

 

 

 

 

 

 

 

4

 

 

 

 

 

 

 

5

 

 

 

 

 

 

 

6

 

 

 

 

 

 

 

7

 

 

 

 

 

 

 

8

 

 

 

 

 

 

 

9

 

 

 

 

 

 

 

10

 

 

 

 

 

 

 

11

 

 

 

 

 

 

 

12

 

 

 

 

 

 

 

 

IS IT RADIOACTIVE?                                            NAME: ________________________

                                                                                    PERIOD: ____   DATE: ________

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  1. DEFINE ”MEASURED RATE”: ____________________________________________________________________________________
  2. DEFINE “BACKGROUND RATE”: _________________________________________________________________________________
  3. DEFINE”COUNT RATE DUE TO OBJECT”: ________________________________________________________________________
  4. DEFINE “RADIOACTIVE”: ____________________________________________________________________________________


5. IF YOU GET A NEGATIVE OBJECT COUNT RATE FOR ONE OF THE OBJECTS, WHAT DOES THIS MEAN?

_____________________________________________________________________________________________________________

6. WHAT OBJECTS DID YOU FIND RADIOACTIVE?

_____________________________________________________________________________________________________________

7. WHICH OBJECTS WERE NOT RADIOACTIVE? _________________________________________________________________

 

8. CAN YOU BE ABSOLUTELY SURE IT (THEY) WERE NOT RADIOACTIVE?

Why? ________________________________________________________________________________________________________

 

9. WHAT WAS THE SOURCE OF RADIATION WHEN NO MATERIALS WERE PLACED NEAR THE GEIGER COUNTER? ________________________________________________________________________________________________________________

 

10. WILL THE GEIGER COUNTER EVER GIVE A READING OF ZERO (0)? ____________________________________________