Bay Meadows Elementary
Anushka.S (5th), Jade.D (5th),Iris.D (5th), Andrew.A (4th)
How we made watering plants fun
4Ft x 4Ft Wood plank
Batteries operated fan
Plastic bottle caps
Hot Wheels track
Plastic water bottles
Toilet paper roll
This is how our Energy Transfer Machine works, Chemical to electrical (Battery)-essentially its a release of energy when chemical reactions take place inside a cell. Electrical to kinetic (Rotational KE in fan motor).Electrical to heat and sound (the fan motor makes some sound and gets heated, (these are undesirable conversions that dissipate energy).
Gravitational Potential Energy to Kinetic Energy, all of the slides and falls, car, marble etc. When the car collided with the marbles we noticed a few things(a) Sound (b) Vibration (c) There will also be some heat, these dissipative conversions take place when PE is converted to KE. The car will go down the ramp, and knock the “Jenga” blocks down, which will make the golf ball go down the tunnel, this is Gravitational Potential Energy to Kinetic Energy. When the golf ball hits the balloon filled with water, the balloon will roll into the cup with pins and pop, and water our plant, this is Gravitational Potential Energy in action.