- Physical Science
- Half-life, Radioactivity, Nuclear energy, Radiation
- Age 14-18
-
level: 8th through 11th grade
- English
คำแนะนำของผู้เขียน
Half-life problems with quiz
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- Physical Science
- Half-life, Radioactivity, Nuclear energy, Radiation
- Age 14-18
- level: 8th through 11th grade
- English
คำแนะนำของผู้เขียน
Half-life problems with quiz