4. Sınıf Fen Bilimleri 1. Dönem 1. Yazılı Örneği

https://www.youtube.com/watch?v=j8DhtFOISow&list=PL3oxhzRdQr1kr6jcAWJcT8yQrum_wGYkw&index=19

https://www.youtube.com/watch?v=bg9b7vfJqn8&t=2s

https://www.youtube.com/playlist?list=PLVnecmSBOHilJV6qUZVagjLS3EMCjq0NZ

https://www.youtube.com/watch?v=H5uEvl3sYZE

https://www.youtube.com/watch?v=AsxyX-Lvkhc

https://youtu.be/Wh-iqVTj33E