الوسم: theme

MEANING WORD MEANING WORD
طاقة
مادة
شغل
مطلوب
المقدرة
أشكال
طاقة حرارية
بخار
محرك
طاقة كهربية
محطات توليد
تدور
طاقة ضوئية
طاقة شمسية
طاقة حركة
طواحين الهواء سدود
طاقة صوتية
الرعد محيطات
بحيرات
مالح
الكرة الأرضية
مهم
مصادر
جليد
ملوث
قاذورات
جراثيم
أمراض
مواد كيميائية
يمدويوصل
يزيل
معتمد على
أنهار
البرك
الجداول
الوقود
Theme 6, 7]
The water on earth, understanding energy
1-put (/) for true and(x) for false:
More than half of the earth’s surface is covered with land.-1
2-sea water is best for drinking. ( )
3-most of the pollution in rivers and lakes is caused by man.
4- Seas, oceans and rivers are sources of clean water. ( )
5- Glaciers are formed near the rivers. ( )
6-you can do work even if you do not have energy. ( )
7- Energy is available in various forms. ( )
8-fuels have stored energy in them. ( )
9- Sun is an important source of energy. ( )
10- Light energy is the most important form of energy. ( )
11- We need energy to do work. ( )
12- We get energy from food. ( )
13-if a car stops, it has kinetic energy. ( )
14- Work is done when you cannot move the wall. ( )
15- Thunder is a form of sound energy. ( )
2- Name these:
1-several rivers begin from them.——————
2- water with dirt and germs in it.——————————
3- removes dirt from the water.——————-
4- used to clean the water.————————————-
5-it is required to do work ………………………………………………
6-this form of energy is used by plants to make food ……………………………………………
7-this form of energy is required to make electricity in dams —————————————————
8-our body stores energy in the form of it ————————————————-
9-thing are burnt to produce energy —————————-
3-Hoe does river water get polluted ?
————————————————————————————————————————————————————–
4-Describe how water is cleaned before supplying to our house? ———————————————————
——————————————————————————-
5- what do you understand by fuels?Name some common fuels]

الصراحه………..
الامتحان وايد …………..
حلو وانشاء الله كل يستفيدون منه……………………….