A Radioactivity lesson for Year 10, Mr Phillips' Class.

Click on the links below the questions.

1. How is radioactivity defined at this site?

http://www.factmonster.com/ce6/sci/A0840930.html

2. What year did Becquerel discover radioactivity in Uranium?

http://www.factmonster.com/ce6/people/A0806696.html

3. What year did Marie Curie discover plonium and radium?

http://www.factmonster.com/ce6/people/A0814297.html

4. The nucleus contains about what percentage of the mass of an atom? What size is an average atom?

http://www.lbl.gov/abc/Basic.html

5.What do the windows of Geiger Counters have to be made of to detect alpha particles and why? http://www.blackcatsystems.com/science/radiation.html

6. What did Stéphane Lauzanne say that Marie Curie carries in her hand each day? What was Marie afraid of though?

http://www.aip.org/history/curie/radinst1.htm

7. Write down the equation that explains what Rutherford found when he fired alpha particles at nitrogen atoms.

http://www.factmonster.com/ce6/sci/A0860078.html

Find any other website that refers to ALPHA PARTICLES, BETA PARTICLES or GAMMA RAYS and write down its location.

LOTS OF SCIENCE LINKS

http://www.schoolwork.org/science.html

Try the above link and see if there is anything useful there!