This template has all your video lesson questions, assignments from this unit and resources to educate yourself on nuclear reactions.
Nuclear Changes
Nuclear Reactions Lesson
Answer all of the following questions for homework:
1. Determine how much of a 100g sample remains radioactive after 5 half lives.
2. H-3 has a half-life of 12 years. How old is a sample that only has 25% of the radioactive isotope remaining?
3. Describe what happens to start a fission reaction.
4. Describe how to start a fusion reaction.
5. Is a chain reaction a fission or fusion reaction? Why?
6. Define the 6 words from Ch. 25.4 (p. 801).
Radioactivity Lesson
Answer all 6 questions for homework:
1. List 5 radioactive elements and explain HOW you know they are radioactive.
2. What causes an element to be radioactive?
3. List 3 types of radiation and their characteristics.
4. What type of radiation is most harmful and WHY?
5. Define the seven words from Ch. 25.1 & Ch. 25.2.
6. In your opinion, who was the most important scientist in the discovery of radioactivity? WHY?
Physical Science 