We are reaching to the end of the course.
To improve your marks you have the option of the final homework and exam.
The natural science syllabus is so long that it is very difficult for you to study all for a single exam.
For helping to you I have designed the final homework. A document that summarizes the most important contents of all the course. Doing it and reviewing these contents you will be ready to pass the exam and improve your marks.
Good luck. This is the final effort for this year.
2º ESO FINAL HOMEWORK