Recyclable Plastics

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By: anugunturu (15 month(s) ago)

i want this ppt, plz send it to my mail

 

By: abaraquio (23 month(s) ago)

Erica, I loved how you introduced your topic on Recyclable Plastics. Last year, our whole school made a huge deal out of Green Week and your Webquest would be a great tool to use during Green Week/Earth Day next year to teach your students about ways we can reduce, reuse, recycle, and take care of earth, all the while learning about the properties of plastics. You are such a science whiz...I wish I were great at teaching science like you are! Excellent, job!

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Recyclable Plastics : 

Recyclable Plastics By Erica Eastman

Warm-up : 

Warm-up Take a few moments and write down as many things as you can that are made of plastic… Here are a few examples: shampoo bottles, toothpaste tubes, Starbucks lids, trash bags

Plastic, plastic everywhere! : 

Plastic, plastic everywhere! What are plastics made out of? Long chains of repeated structural units These chains are called polymers “poly” = many “mer” = thing

Common Properties… : 

Common Properties… Polymers stick together to form thin but strong substances Some are clear, others are opaque; some are brittle, others flexible; different plastics can be used for different things Image from http://i.i.com.com/cnwk.1d/i/ne/p/2008/SPI1PET_550x367.jpg

Different Types of Plastics : 

Different Types of Plastics The most common types of plastics are labeled with a number and an abbreviation of the polymer name (for example, polystyrene is abbreviated PS) These labels are called Resin codes Codes are stamped on the bottom of most plastic containers

Resin Codes : 

Resin Codes Image from http://going-well.com/wp/wp-content/uploads/2009/07/plastic-label-numbers.jpg

In the WebQuest, you will : : 

In the WebQuest, you will : Find out: Why we use Resin codes What the numbers represent What properties the different plastics have What each of the different types of plastics are used for How plastics are recycled Discover which ones you have in your house right now Then… with your knowledge of the different types of plastics, you will get to create your own product (container, toy, coating, etc.) with whatever plastic(s) you want!