1. What initial observation prompted Mario to study the problem?

2. What was Mario’s study problem (question)?

3. What information did he gathered to come up to his hypothesis?

4. What do you think are the possible hypothesis did he formulated as to why the bulbs did not light?

5. What did he do next to find out which of his hypothesis is correct?

6. What conclusion (answer to the problem) did he come up with?

7. What did he finally do with his discovery on why the bulbs did not light?

patulong nmn , ty<3​​​