Academic describes something that is educational or related to school. If learning and studying are easy for a student, she can be described as academic.
Arabic is a language spoken in a number of countries in the Middle East and northern Africa.
Many houses have walls that are made out of bricks. Bricks are hard, rectangular objects usually made from clay. They are very heavy.
Ceramic is a material that is made from another material by heating it up so it changes its internal structure, and then letting it cool off again. Most ceramics are made from clay, which is soft and brittle before it is fired, and much harder and stronger afterwards.
Glass is another example of a ceramic. It is made by heating sand.