Matter and Its Properties — العلوم الصف الأول الإعدادي لغات

الدرس الثالث

الدرس ده من وحدة «The Matter» فى مادة العلوم لـالصف الأول الإعدادي لغات على منصة دروسات.

الدرس متاح بالاشتراك: ترم كامل أو المادة لوحدها.

ملخص الدرس

This lesson explains the classification of matter into mixtures and pure substances. It distinguishes between homogeneous and heterogeneous mixtures, and between elements and compounds. The lesson also introduces molecular formulas, the concept of organic compounds (carbon compounds), and the difference between physical and chemical properties of substances, along with their practical applications.

هتتعلم إيه فى الدرس ده

• Matter is classified into mixtures and pure substances.
• Mixtures can be separated by physical means, while pure substances require chemical means to separate.
• Pure substances are either elements (simplest form) or compounds (chemically combined elements).
• Molecular formulas represent the type and number of atoms in a molecule.
• Physical properties can be observed without changing the substance, while chemical properties are observed during a chemical reaction.