اختبار - ساينس - نماذج وزارة - الصف الرابع - الفصل الثاني - منهاج مصري - نموذج 6

هذه معاينة نصية للأسئلة للاطّلاع والمراجعة فقط. لخوض الاختبار تفاعليًّا مع تصحيح آلي ونتيجة فورية، اضغط زر «ابدأ الاختبار» أدناه.

1. Acid rain is formed when ..........combines with rain water.
   • أ. carbon dioxide
   • ب. oxygen
2. Cars smog causes irritation of ...... of human.
   • أ. the eye
   • ب. the small intestine
3. Both modern wind turbines and old windmills are similar in their.....
   • أ. function
   • ب. blades number
4. An example of the renewable energy is ...........
   • أ. wind
   • ب. oil
5. Using curved ......... in cooking food is one of the benefits of using the solar energy.
   • أ. mirrors
   • ب. wood
6. When wind ......... energy increases, the windmill blades spin faster.
   • أ. kinetic
   • ب. chemical
7. In water turbines, the ........ energy of water is changed into electrical energy.
   • أ. kinetic
   • ب. light
8. The form of energy resulted from waterfalls is called ...... energy.
   • أ. hydroelectric
   • ب. solar
9. Modern wind turbines are................. the old vacuum mills
   • أ. longer than
   • ب. shorter than
10. The power source for the electric fan is ...............
    • أ. electricity
    • ب. wind
11. Solar energy is used in ...........................
    • أ. cooking food
    • ب. food preservation
12. The output of solar panels is.......................
    • أ. electricity
    • ب. photo
13. Hydroelectric power is produced using ..................
    • أ. water
    • ب. wind
14. The source of all energies on earth is ..................
    • أ. The sun
    • ب. planets
15. The sun’s energy is produced from a gaseous reaction.
    • أ. Hydrogen and Helium
    • ب. Nitrogen