SCIENCE: REFLECTION ON MAKING SIMPLE MACHINESBy: 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)