When talking about the pH scales this are the all information you need!
acids - scale from 0 to 7
neutral - scale from 7
base - scale from 7-14
acids - coke, sprite, milk, and anything you think is very acidic.
neutral - think about your blood, and the water you drink.
base - just remember that the bleach you put on your clothes to make it clean.
That's all the information you need form this topic and if you have any questions please respond and I am glad to answer all the questions that relates to biology.