Scientific Instruments Options

[Physics Class 4th Period Hanna H]

Hi Mrs. Kaden,
we are your 4th period physics class and we want to know what instruments do the scientists use to collect data. We understand that you take samples from the ocean floor, but do you have a way to kind of scan the ocean floor and look into it? What conlusions or what results do you expect? What can the ocean floor tell us about the past and how can we benifit from the exploration? Please explain it in a kind of easy way, we are just going into physics with your husband and we need to learn a lot.
Thank you and bye from Hanna