During the past few weeks, we’ve been going over the force of gravity and force of drag with the sixth graders while they’re working on their bottle rockets.
Drag is the force produced by the resistance of the air to the forward motion of the airplane. Swish your hand rapidly side-to-side and you will feel that resistance on your hand.
Gravity is a force of attraction that exists between any two masses, any two bodies, any two particles. Gravity is not just the attraction between objects and the Earth. It is an attraction that exists between all objects, everywhere in the universe.
Here are some photos from their test launches! It was a wet and wild day!
Keep up the good work, guys!














