SCIENCE: REFLECTION ON MAKING SIMPLE MACHINES By: Okkar Htin, Rose, Shwe Hmon, Hnin Ei (8A)

Purpose  We worked on two different projects and made two different machines.  #1: Robot Arm-Can pick up water bottles  #2: Suspension Bridge- Represents shifting of bridge to allow ships to pass through

Design & Mechanisms Involved (#1)  Materials used: Popsicle sticks, syringes, pipe, water, wires, duct tape, rubber bands, fasteners, glue, cardboard  3 different syringes powering 3 different movable joints

Design & Mechanisms Involved (#2)  Materials used: Popsicle sticks, rubber bands, syringes, pipe, glue  Pressure of syringe being pulled back travels through pipe and pulls mobile part of bridge up

Faults & Limitations  #1: Cannot grasp minuscule items nor items of a certain shape due to original design of exclusively carrying water bottles  #2: Unstable engineering at the vital joints of the bridge, may not move when demanded

Possible Improvements  More visually appealing (generous but subtle use of glue, clean-cut joints and components)  Refined placement of joints and mechanisms (resulting in easier movement of joints)