ادخل الى الرابط واجب عن الاسئلة
https://www.galim.org.il/science/unit/%D7%AA%D7%A8%D7%92%D7%95%D7%9C-%D7%9E%D7%97%D7%9C%D7%A7%D7%95%D7%AA-%D7%91%D7%A2%D7%9C%D7%99-%D7%97%D7%99%D7%99%D7%9D-%D7%A2%D7%95%D7%AA%D7%A7-%D8%A7%D9%84%D9%83%D8%A7%D8%A6%D9%86%D8%A7%D8%AA-%D8%A7%D9%84%D8%AD%D9%8A%D8%A9/0?lang=ar