1. Why is human blood red, but some animals have blue, green, or purple blood?
2. Why is it important to match blood types for transfusions? What problems can happen?
3. In some countries, people connect blood type with personality or culture. Do you know any examples?
4. Do you think one day scientists can make artificial blood for everyone? What are the good and bad sides?
5. Blood is sometimes stranger than we imagine. Does this change your idea of what is “normal” in biology?
6. Why do you think people need blood donations?
7. How would you feel if you had a very rare blood type?
8. Do you think everyone should try donating blood at least once? Why or why not?