Diy ракета за вода
Гелсонлаб HSTM-009 Образование за стебла
Опишувања:
Diy ракета за вода is a Science products Using water and compressed air, Water Rocket flies with the same basic concept as real rockets. By adjusting the amount of air and water, the distance of flight can be varied. Let's learn about air pressure and how it works!