Learn about the properties of natural rubber, the production of synthetic rubber and its uses.
Learn about two dienes that play a significant role in industry.
This lesson compares the organelles found in plant and animal cells.
في هذا الدرس يمكنك أن تتعرف على تاريخ المجاهر الضوئية وبنيتها واستخدامها.
تعتبر خلايا البويضة وخلايا الحيوان المنوي من الخلايا الجنسية المسؤولة عن عملية التكاثر.
One of the properties of aqueous solutions is their pH, which can be acidic, neutral or alkaline.
يتحدث هذا الدرس عن تاريخ الأرض وكيفية تطور الحياة على سطحه.
Learn about the structure and use of Bunsen burners.
يتناول هذا الدرس التغيرات التي تحدث أثناء الحمل والولادة.
In this lesson, you are going to learn useful vocabulary for rooms and furniture.
In this lesson, we are going to learn some classroom objects and classroom instructions.
This digital lesson is all about free time activities and words we use to talk about them.
Learn about one of the greatest leading figures in history.
Have you ever wondered what type of hammer you should use for different nails?
In this lesson, you will learn how to use the verb to be and also how to say countries and nationalities in English.
يساعدك هذا الدرس على فهم عالم الخدمات المصرفية المعقد بشكل أفضل.
This digital lesson teaches you how to form and use the Past Perfect Simple correctly.
In this lesson, you are going to learn some vocabulary related to animals that you keep at home as pets.
In this lesson, you can learn about the magnetic properties of some materials.