How do power car tires.1. prepare water bottles, plastic bottle LaTeX 3-4 lines A heavy crate paper, 1 sheet The wooden plug 1 lumber. Paper 1 sheet Glue, scissors, cutters2. cut the paper, cartons, 2 circles of circles, and then remove the paper wrapped around to reduce friction.3. wood, plugged into the center of the wheel, the two wheels, then glue a coin to make.4. using the cutter drilling water bottles along the length, width, and sufficiently long.5. hundreds of rubber bands together and attach to the middle of the wooden wheel holder and hold the other end leads to water bottles strapped to and close the cover.6. rotate the rear wheel to provide power to the wheels, leather, rubber, release occurs. The car can run forward.
การแปล กรุณารอสักครู่..