پاورپوینتی زیبا و جذاب در 54 اسلاید قابل ویرایش منطبق بر مطالب درسی جهت تدریس دبیران عزیز و یادگیری بهتر دانش آموزان The first wind machine was used in ancient Persia around 300 BC1. •One wind turbine can produce enough electricity to power 300 homes. •Renewable energy sources create three times more jobs than fossil fuels. •Albert Einstein2 won the Nobel Prize in 1921 for his experiments with solar power.   ...

پاورپوینتی زیبا و جذاب در 58 اسلاید قابل ویرایش منطبق بر مطالب درسی جهت تدریس دبیران عزیز و یادگیری بهتر دانش آموزان Ants are found everywhere in the world. They make their home in buildings, gardens, etc. They live in anthills. Ants are very hardworking insects. Throughout the summers they collect food for the winter season. Whenever they find a sweet on the floor, they stick to the sweet and carry it to their home. Thus, in this way, they clean the floor. Ants are generally red and black in colour. ...

اورپوینتی زیبا و جذاب در 55 اسلاید قابل ویرایش منطبق بر مطالب درسی جهت تدریس دبیران عزیز و یادگیری بهتر دانش آموزان Interesting Facts: •Helping others lowers blood pressure. •Kindness boosts energy and strength in elderly people. •Teenagers who help others are more successful in life. •Listening to the advice of older people improves our lives. •Taking care of grandchildren increases brain function and Memory. ...