عرف علم تقنية النانو

هي تقنية التحكم التام والدقيق بجزيئات بحجم النانوميتر لإنتاج مواد معينة من خلال التحكم في تفاعل الجزيئات.

Lesson 6

C. Read the sentences and write and or but.

1. I have a brother, but I don't have a sister.
2. I ate chicken for lunch and I had it for dinner, too.
3. Lots of boots are made of leather, but some are made of rubber.
4. Mariam Speakes English and she Speakes French, too.
5. The TV is on, but we're not watching it.
6. Yesterday was cloudy and cold, it didn't rain.
7. We grow rice on our farm, but we don't grow vegetables.
8. My cousin is grade 6 and I am too.