On Tuesday, the girls returned to the Discovery Science and Technology Centre, eager to dive deeper into bridge construction techniques. After watching a short video on building the glueless Da Vinci bridge using just chopsticks and rubber bands, they split into groups of two or three. Armed with newfound knowledge, they attempted to construct their bridges once again. “Practice makes perfect,” they reminded each other, and this time, their progress was impressive.
However, time was limited, and soon they moved on to the next experiment. Using scrap paper, the girls crafted prisms of various cross-sectional shapes. They loaded their creations with books and toys, experimenting with different heights and shapes. To their delight, they discovered that shorter prisms, whether circular or triangular, could support heavier loads.
The excitement grew as they faced their next challenge: to build a bridge spanning a 71 cm gap between two tables that could carry as many glass marbles as possible. With materials limited to paper, sticks, masking tape, paddle pops, and straws, each team brainstormed different designs. Ideas flowed freely, with some tested and discarded based on their success or failure.
As the girls collaborated, their creativity truly shone. They encouraged one another, sharing tips and refining their designs along the way. Finally, the moment of truth arrived: each bridge stood strong under the weight, successfully supporting a pound without faltering. The expressions of worry and excitement on their faces were priceless. As a reward, they had the chance to step onto the platform supported by four bulbs.
Their hard work and teamwork paid off, leaving them with not only sturdy bridges but also a profound sense of accomplishment and the joy of discovery. It was a day filled with learning, laughter, and the exhilarating thrill of engineering success.
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