1. What is the skin? Describe it structure.
2. What is a skin cancer?
3. Talk about the three types of skin cancers and their characteristics.
4. Find some statistics showing numbers of people affected by these tumors? How do these number change with time?
5. What are the main causes of skin cancers?
6. How can we prevent and detect skin cancers?
7. How can the sun's UV rays damage the cells of our skin?
8. What is SPF? What number and kind of sunscreen should we use?