4.Sınıf Fen Bilimleri Kuvvetin Etkileri

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

https://www.youtube.com/watch?v=zaF2vm9Nf4M&list=PL3oxhzRdQr1kr6jcAWJcT8yQrum_wGYkw&index=8

https://youtu.be/slWeEgZNxeU

https://youtu.be/bfprUuVhTjk

https://youtu.be/LQGsiBRRSas

https://www.youtube.com/watch?v=mydqjPvImNo&t=9s