Question

What do Ser and Estar mean? How do you use them in sentences?

Answer 1

Both Ser and Estar mean the same thing - to be. However they have different conjugations and are used in different circumstances.
Ser is used for mostly description, occupations and character.
Estar is mostly used for position, location and conditions.

Answer 2

Ser= verb to BE // Estar= verb to say where is someone or something

Step-by-step explanation:

Yo soy (first person singular of the verb SER) muy guapa

I am really pretty

Yo estoy (first person singular of the verb ESTAR) en el cine

I am at the cinema