Name__________________________________

Radiation Scavenger Hunt

Date____________________ Period _________

The purpose of this activity is to explore one use of the Internet. By completing this activity you will become more familiar with the benefits and disadvantages of radiation. Use the different URL’s to answer the questions below. Good luck and happy radiation surfing!

1.Type in one of the following addresses: http://www.umich.edu/~radinfo/introduction/ or

http://www.nuc.umr.edu/Brochures/Radiation.html

a. What do you call the transfer of energy from one place to another?

________________________________________________________________________

b. What is the difference between ionizing and nonionizing radiation?

_________________________________________________________________________

_________________________________________________________________________

c. List three examples of ionizing radiation.________________________________________________

_________________________________________________________________________________

d. List three examples of nonionizing radiation. _____________________________________________

_________________________________________________________________________________

e. How is ionizing radiation detected? ____________________________________________________

_________________________________________________________________________________

f. List three natural sources of radiation. _________________________________________________

_________________________________________________________________________________

2. Type in the following address: http://www.atral.com/U238.html g g g g

a. Which kinds of radiation are made of particles? __________________________________________

_________________________________________________________________________________

b. What is the charge on an alpha particle? ______________________________________________

c. Are alpha and beta particles hazardous when external to the body? __________________________

d. Lead is used to shield what kind of radiation? ___________________________________________

e. What is the mass of an alpha particle? ________________________________________________

3. Type in the following address: http://www.atral.com/U238.html j j j j j j j

a. What is meant by the term half-life? __________________________________________________

_________________________________________________________________________________

b. What is the relationship between length of an isotope’s half-life and the degree of its radioactivity?

_________________________________________________________________________________

c. Where does radon originate? ________________________________________________________

d. Does the radioactive decay of radon-222 to polonium-218 involve alpha or beta decay? ___________________________

e. What is the stable end product after uranium-238 decays?__________________________________

4. Type in the following address: http://library.thinkquest.org/3471/radiation_detection_body.html

a. Explain how a Geiger counter works.__________________________________________________

_________________________________________________________________________________

_________________________________________________________________________________

b. Why is it called a counter? _________________________________________________________

5. Type in the following address: http://www.epa.gov/radiation/students/quiz.html

After reading through the teacher and student pages, use the information to complete the following sections recording your answers on the following forms:

a. "How Much Do You Know About Radiation Protection?"

b. "What is Your Annual Radiation Dose?"

c. "Radiation Protection Crossword Puzzle."