ENGINES

Regarding to engines that we are studying in class, here you are two interesenting videos that can provide you with helpful information. They are about 4-stroke engines and 2-stroke engines.

PLASTICS

Answer the following questions on the video.

• 1. What is so amazing about PET?
• 2. What are some of the advantages of plastics vs. metal and glass?
• 3. The making of a PET bottle starts with resin beads. What happens to them?
• 4. Bottles can have a second life once they are recycled. How does the process start?
• 5. What happens with the compact bundles?
• 6.Why is PET one of the most valuable recyclable materials?
• 7. Can you name some products made of PET?

Complete the sentences.

1. Post industrial plastics can come in ………………………………………………….
2. ……………………………………………………………………………………………can be reused and recycled.
3. Defective manufactured parts such as ………………………………………… can be recycled.
4. Extra or ……………………………………………………….. can also be recycled.
5. Plastics are …………………….by one of the machines into ……………………………
6. Melting plastics help ……………………………………………………………..before being reduced in size.
7. Once reduced the plastic it is sent through another machine to ……………………….
8. ………………………………………………………………………………………………………………………………
9. Plastics can be ……………………………………………….to be used by other manufacturers.

Complete the sentences.

1. When the plastic first arrives at the reclaimer it needs to………………………………
2. Each type of plastic is designated with a number ranging ……………………………
3. Once the plastic has been sorted at the reclaimer each type is put into the grinder and…………………………………………………………..
4. The resulting plastic polymer mixture can be reformed into new products such as………………………………………..