What are the differences between earth, life, and physical science?

Earth science is how the earth was created and how it functions today. Life science are having to do with animals and other lifeforms. Physical science is dealing with reactions and different experiments and hands on activities.

Explanation:

bacteria could be both, harmful and to us. harmful bacteria could make us sick and probably even by getting the chances of getting a disease, but good bacteria fight it off with your immune system. there is always bacteria everywhere we go. we need to make sure to wash our hands after using the restroom, before eating, after eating, after petting an animal too. so you see, bacteria is everywhere and is harmful or . i hope this . : ) : ) : )