Injection Moulding

-Bubbles of gas began to produce itself around the aluminum which had appeared to let off vapor

gas bubbles serves as evidence that the catalase enzyme is working. As catalase is breaking the

2. In Part 1, why did you not observe a stream of bubbles coming off the stainless steel screw in the sugar solution?

17) Pour a small amount of the hot solvent into the flask containing the solid.

Founded in 1975, Custom Molds Inc. is the producer and supplier of bespoke molds and plastic connectors to the electronics industry. Building on its reputation, the company expanded in-house operations in the 1980s to include the limited production of plastic parts geared towards R&D based initiatives. During the early 1990s, the company realized that the shifting structure and market environment of the electronics industry was starting to impinge on the company’s manufacturing processes. This created a host of issues.

When four paper clips were added to the cup, the water had not even begun to show signs of spilling. By the end of the experiment, the cup of water was able to hold 120 paperclips before the water ran over. As the 119th paperclip was added, we noticed a somewhat large “half bubble” on the surface of the cup. This ‘bubble’ was caused by 3 factors known

1. First, 3.0015 g of salicylic acid were measured using an electronic balance. 2. The salicylic acid was then transferred into a 150 mL beaker.

Slightly angling the part of the baggie where it can be sealed upwards and keeping the hand firm on the bag as a blockade, slowly pour the five mL of phenol red solution into the baggie while not moving the hand, which is blocking the liquid from making contact with the substances.

Small pockets of the specific liquid, that contains trapped gas, that is then released to the

Quickly cap the tube with the rubber stopper and submerge and make sure dropper is under the granulated cylinder and that the bubbles are going up the cylinder.

We found that Polypropylene was our 5th unknown. Polypropylene (C3H6) or more commonly referred to as PP, is used for labeling, packaging, textiles, and stationery. In 1957, the crystallization of polymer was discovered. Soon fabric was made from the polymer, and was in high demand. It can also be used for moldings of cars, film, tape, foam and carpet. Polypropylene can not be glued to any objects or itself, and so it is melded. After Polyethylene, Polypropylene is the highest produced synthetic plastic. Polypropylene also holds up well over time, which is one of the reasons that it is the second most produced plastic. The melting point is between 130-171 degrees celsius. Because polypropylene is tough and flexible it can be used as an engineering plastic. Finally, polypropylene can be used be manufactured into a living hinge. A

When sodium carbonate was added to the separating funnel, effervescence occurred, inferring the release of carbon dioxide gas as a product of the neutralisation reaction. As the process continued, pressure built within the separating funnel, so it was vital to open the tap, after continuously inverting it.

conjunction with the human body, which plastics are used in prosthetic limbs, and if there

There is an explosion just as the piston is at its highest point, and the volume of the chamber is its lowest. This phase is called combustion. The force of this explosion pushes the piston down, and then up again as a second valve opens, pushing the exhaust out and into the air. This final phase is called exhaust. As the piston moves down again, the cycle repeats.

break down the glue-like material bonding the wood fibers. Chemicals used in the digester are reclaimed and used in