- 
                  
Physical Science
 - 
                  
Half-life, Radioactivity, Radiation, Nuclear energy
 - 
                  
Age 14-18
 - 
                    
level: 8th through 11th grade
 - 
                  
English
 
Author's Instructions
Half-life video notes with video and quiz
- 
                  
Physical Science
 - 
                  
Half-life, Radioactivity, Radiation, Nuclear energy
 - 
                    
Age 14-18
 - 
                    
level: 8th through 11th grade
 - 
                  
English
 
Author's Instructions
Half-life video notes with video and quiz
