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| Author: | مكتبة لبنان ناشرون |
| Category: | Materials Science [Edit] |
| Language: | Arabic |
| Publisher: | مكتبة لبنان ناشرون السلسلة: أنشطة العلوم |
| ISBN: | 9953105154 |
| Release Date: | 01 Jul 2002 |
| Pages: | 42 |
| Rank: | 492,533 No 1 most popular |
| Short link: | Copy |
| More books like this book | |
العالم الذي نعيش فيه يتشكل من المادة. ما الذي يعنيه ذلك بالضبط؟ تشتمل المادة على كل ما له كتلة ويشغل حيزاً. أجسامُنا، والهواء الذي نتنفسُهُ، والماء الذي نشربه، كلها أمثلة على المادة. من المادة أنواع عديدة تستخدمها في حياتنا وفي صناعاتنا. يُريك هذا الكتاب خصائص أنواع مختلفة من المواد. ويُساعدك على فهم كيف تختبر هذه المواد المختلفة قبل اختيارها لتستخدم في الصناعة أو البناء. ويكشف لك عن تجارب مثيرة عظيمة الفائدة يمكن أن تنفذها لتتعرف على مبادئ العلوم وحقائقها، كل ذلك جاء بأوضح صورة مصورة وبأسهل أسلوب في الشرح مدعم بالرسوم البيانية الملونة التي تضفي على الكتاب نوعاً من التشويق والبساطة في فهم الشرح. ومما تجدر إشارته أن هذا الكتاب يمثل مدخلاً هاماً إلى مادة العلوم بشكل عام وإلى عالم المادة والمواد بشكل خاص إذ أنه يقدم لطلاب المدارس الابتدائية والمتوسطة معلومات قيمة وهامة وتجارب مدهشة مثيرة.
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