امتحانات العلوم (ساينس) للصف الأول الإعدادي

1. 1

   A rod made of ................... can be charged with static electricity when rubbed with wool, only if the rubbed part is insulated.

   • Aglass
   • Bplastic
   • Ciron
   • Debonite

   اختيار من متعددQalyubia 26
2. 2

   ................ alloy is used in constructing military aircraft frames, while ................ alloy is used in making cooking utensils.

   أكمل
3. 3

   A bond formed as a result of an electrostatic attraction between a positive and a negative ion. (........................)

   المصطلح العلمي
4. 4

   A copper rod is rubbed with a piece of silk, then brought close to paper scraps. What happens to the paper scraps? Explain.

   ماذا يحدث عندSharkia 26
5. 5

   Describe the appearance of the Moon when it lies completely within region (2).

   سؤال على الرسم
6. 6

   All atoms of the following elements can form ions, except ...................

   • A$_{17}$Cl
   • B$_{13}$Al
   • C$_{18}$Ar
   • D$_{12}$Mg

   اختيار من متعددCairo 25
7. 7

   ............ are substances whose components cannot be separated by chemical or physical means.

   أكمل
8. 8

   A group of different organs that work together. (....................)

   المصطلح العلمي

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