How old are the islands?

Hi Ms. Barrett. I just had a question that's been stuck in my head for a while now and I want to know if anyone knows the answer. I wanted to know if scientists have figured out approximately how old the Galapagos Islands are? Also if they do know, how did they figure this out?

Thanks,
Daniel Pd. 1

Good question, Dan. Whoever answers this question will also discover the islands are actually moving with age. Students, some of you are crying for extra credit. Answer this question for Dan and I'll give you a five-point BioBuck!