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picture1_Ppt In Chemistry 72235 | Ocean Plastics Talking Points


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File: Ppt In Chemistry 72235 | Ocean Plastics Talking Points
green chemistry introduction what is chemistry what does defining green chemistry what is chemistry what does chemistry mean to you do chemistry mean to you do you think of good ...

icon picture PPTX Filetype Power Point PPTX | Posted on 31 Aug 2022 | 3 years ago
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        Green Chemistry Introduction: 
                                                                         What is Chemistry? What does 
        Defining Green Chemistry                                          What is Chemistry? What does 
                                                                         chemistry mean to you? Do 
                                                                          chemistry mean to you? Do 
                                                                         you think of good things or bad 
        Have students work in pairs for 30 seconds to come up             you think of good things or bad 
                                                                         things? Who has heard of 
        with a definition for green chemistry. Break down the             things? Who has heard of 
                                                                         companies going green?  What 
        meaning of both words.                                            companies going green?  What 
                                                                         does that mean?
                                                                          does that mean?
        Establish that chemistry is the science of making 
        products.
        Eco-friendly, good for the environment, sustainable.
                                                                         Green chemistry is pollution 
                                                                          Green chemistry is pollution 
                                                                         prevention at the molecular 
        What do chemists do?                                              prevention at the molecular 
                                                                         level, the basic design stage.  So 
                                                                          level, the basic design stage.  So 
                                                                         what is it that chemists do?
                                                                          what is it that chemists do?
        Use wait time. Build off of their prior knowledge. 
        Acknowledge student responses and prompt them for 
        more information.  Control the conversation by asking for 
        a certain number of answers.
                                                                          Is there anything in this room 
                                                                          Is there anything in this room 
        Chemists are inventors. They help to design just about            that a chemist invented? What 
                                                                          that a chemist invented? What 
                                                                          about the desks, paint, floor, 
        every product out there.                                          about the desks, paint, floor, 
                                                                          etc.
                                                                          etc.
        Traditionally chemists were not taught about the 
                                                                          Who has taken medicine? Does 
        environmental impact or toxicology. We have had many              Who has taken medicine? Does 
                                                                          anyone use an iPod or an mp3 
        advances and helpful inventions but we have also had              anyone use an iPod or an mp3 
                                                                          player? What about a computer 
        inventions that have caused harm to the environment.              player? What about a computer 
                                                                          or a cell phone?
        Green chemists design products taking into account the            or a cell phone?
        entire process, energy efficiency, renewable resources, 
        the product itself along with the end-of-life impact of the 
        product.
                                                                          Would you buy a “traditional” 
                                                                          Would you buy a “traditional” 
                                                                          cleaner that costs $1 or a 
                                                                          cleaner that costs $1 or a 
                                                                          “safer” cleaner that costs $5 for 
        Set the Scene:                                                    “safer” cleaner that costs $5 for 
                                                                          the same bottle size?
        Connect the Dots & Introduce the Activity Topic                   the same bottle size?
                                                                          Would you buy a “traditional 
                                                                          Would you buy a “traditional 
                                                                          cleaner” that cleans well, or a 
        Connect the dots for them: they are the future scientists         cleaner” that cleans well, or a 
                                                                          “safer” cleaner that leaves 
        who will help to discover and invent solutions to our             “safer” cleaner that leaves 
                                                                          streaks behind?
        environmental challenges.                                         streaks behind?
                                                                          Green chemists think about 
                                                                          Green chemists think about 
                                                                          safety, cost and performance in 
                                                                          safety, cost and performance in 
        Introduce the 3 criteria of Green Chemistry:                      their product design
                                                                          their product design
        Safety, Cost and Performance. 
                                                               (c) 2017 beyondbenign - All rights reserved.
       Introducing the Problem of Plastics
       Reflect back on the discussion about what items 
                                                                   We just talked about the things in 
       in the room were made by chemists. How many                  We just talked about the things in 
                                                                   the room that were made by 
       of them are made out of plastic?                             the room that were made by 
                                                                   chemists. Which of these items 
                                                                    chemists. Which of these items 
                                                                   are plastic? How many plastic 
                                                                    are plastic? How many plastic 
       Let’s talk about why we use plastics.                       items can you see around you?
                                                                    items can you see around you?
        -   Inexpensive
        -   Easy to manipulate
                                                                   Why do you think so many things 
        -   Versatile                                               Why do you think so many things 
                                                                   are made of plastic? What are 
        -                                                           are made of plastic? What are 
            Many are lightweight                                   some of the benefits of using 
                                                                    some of the benefits of using 
                                                                   plastic? What are some things 
                                                                    plastic? What are some things 
                                                                   you use on a regular basis that 
       Hopefully some of the students will have brought             you use on a regular basis that 
                                                                   are made of plastic?
       up points related to disposable plastics. If these           are made of plastic?
       types of products haven’t come up yet, guide the 
       group to a discussion about disposable items like           How many times during the 
                                                                   How many times during the 
       cups and water bottles.                                     week do you use a disposable 
                                                                   week do you use a disposable 
                                                                   plastic item? What types of 
                                                                   plastic item? What types of 
                                                                   disposable plastics do you use? 
       Introduce the problem of plastics disposal                  disposable plastics do you use? 
                                                                   Water/beverage bottles, cups, 
       through asking questions.                                   Water/beverage bottles, cups, 
                                                                   bags, etc. 
                                                                   bags, etc. 
       About half of the plastics that are produced in a 
                                                                   What do you do with plastics 
       year become waste in less than a year. That                 What do you do with plastics 
                                                                   when you no longer need them? 
       includes plastic water bottles, plastic bags, bottle        when you no longer need them? 
                                                                   Recycle, landfill. Can anyone give 
                                                                   Recycle, landfill. Can anyone give 
       caps – all sorts of different types of plastics. In         me their best guess for what 
                                                                   me their best guess for what 
                                                                   percentage of plastics actually 
       many areas of the country, like near Boston or              percentage of plastics actually 
                                                                   get recycled?
       San Francisco, it’s easy to think that most of              get recycled?
       these plastics go into recycling. However, in the 
       United States as a whole, only about 9% of our 
       plastics end up in recycling. That means that 91% 
       of plastic goes to the landfill! That is a whole lot 
       of plastic waste. 
       But what happens to the plastic after it goes to 
       the landfill? Plastics can take more than 400 
       years to degrade, so it’s going to stick around for 
       a while.
                                                           (c) 2017 beyondbenign - All rights reserved.
       Plastics in the Ocean
       Because disposable plastic production has 
       increased dramatically in the last few decades, 
       our waste systems have a hard time managing all 
       the plastics that go into the trash. As a result, a 
       lot of plastic waste ends up in the environment. 
       About 8 million metric tons of plastic ends up in 
       the ocean every year. In fact, out of the top ten 
       types of trash found in the ocean, eight are types 
       of plastic!                                          What types of plastics do you 
                                                            What types of plastics do you 
                                                            think are commonly found in the 
                                                            think are commonly found in the 
                                                            ocean? Why?
                                                            ocean? Why?
       Plastics ID Challenge
       What do types of plastics do we find in the 
       ocean?
       Give each group a ziplock containing one of the 
       six types of plastic pieces provided and challenge 
       the groups to identify what the plastic once was. 
       Example, one ziplock will have tiny pieces of 
       plastic water bottles and the students will have 
       to try and determine what those pieces originally 
       belonged to. Give each group a few minutes to 
                                                            What type of item do you think 
       discuss and then have them each share what           What type of item do you think 
                                                            your plastic pieces once was? 
       they have decided.                                   your plastic pieces once was? 
                                                            Why do you think so?
                                                            Why do you think so?
       An answer key will be provided in your plastics 
       kit.
       When we see plastic in the ocean, it actually       What do you think ocean plastic 
       looks more like the plastic in your baggies than     What do you think ocean plastic 
                                                           looks like?
                                                            looks like?
       what it once was. That’s because plastic floating 
       near the top of the water breaks down over time 
       into smaller pieces we call “microplastics”. This is 
       from the impact of sunlight on the plastic pieces 
       – a process called “photodegradation”.
                                                     (c) 2017 beyondbenign - All rights reserved.
       Solving the Problem
       Discuss ideas the students have for tackling the 
                                                               What ideas do you all have about 
       problem of ocean plastics.                              What ideas do you all have about 
                                                               how to solve this big problem? 
                                                               how to solve this big problem? 
                                                               Where should we start?
                                                               Where should we start?
       Reduce, Reuse, Recycle
       Ask how many have heard the phrase “reduce, 
       reuse, recycle. Have students share what each 
       one means as you talk about each concept.
       Once we get the plastic out of the ocean, we             What types of things would you 
                                                                What types of things would you 
       need to find something to do with it.                    want to make with recycled ocean 
                                                                want to make with recycled ocean 
                                                                plastic? What items have you 
                                                                plastic? What items have you 
                                                                seen made with ocean plastic?
       Pass around the net and filament samples.                seen made with ocean plastic?
       Adidas, alongside Parley for the Oceans, 
       designed shoes with the help of the Warner 
       Babcock Institute for Green Chemistry that were 
       made from recycled ocean plastic. The net that           What do the items in the baggies 
                                                                What do the items in the baggies 
       you see was turned into the filament- basically          look like? What do you think they 
                                                                look like? What do you think they 
                                                                were used for? Which one was 
       thread- that was used to make the upper of               were used for? Which one was 
                                                                ocean plastic?
       shoes! That’s one way we can recycle our                 ocean plastic?
       plastics!
       Let’s talk about reusing plastics. Reusing is when 
       you use something again in the same way. Most            What do you think of when you 
                                                                What do you think of when you 
                                                                think of “reusing” plastics? How is 
       of us use reusable cups at home rather than              think of “reusing” plastics? How is 
                                                                this different than recycling?
       using disposable ones.                                   this different than recycling?
       The best option for dealing with the problem of 
       ocean plastics is to reduce how much plastic we 
       use. If we’re not using plastics, we’re not 
       throwing them away, so they can’t end up in the 
       environment!
                                                        (c) 2017 beyondbenign - All rights reserved.
                                                                                 Other fun Ooho facts:
        Ooho!                                                                    Other fun Ooho facts:
                                                                            -  Made by Skipping Rocks Lab, 
                                                                            -  Made by Skipping Rocks Lab, 
                                                                               a London-based startup
                                                                               a London-based startup
                                                                            -  The company impact 
        One company out there is working to reduce the                      -  The company impact 
                                                                               statement is “to stop 1 
        number of plastic water bottles produced and                           statement is “to stop 1 
                                                                               billion plastic bottles from 
        consumed by making an alternative water                                billion plastic bottles from 
                                                                               reaching the ocean every 
        packaging. Their packaging is made from plants                         reaching the ocean every 
                                                                               year and to stop 300 million 
                                                                               year and to stop 300 million 
        and seaweed and can will biodegrade in just 4-6                        kg of CO  from ever being 
                                                                               kg of CO  from ever being 
                                                                                      2
                                                                                       2
                                                                               emitted”
        weeks – the same as a piece of fruit!                                  emitted”
                                                                            -  Producing Ooho packaging 
                                                                            -  Producing Ooho packaging 
                                                                               takes 9x less energy and 
        Best of all – their packaging is EDIBLE! You can                       takes 9x less energy and 
                                                                               produces 5x less carbon 
                                                                               produces 5x less carbon 
        pop the whole pod into your mouth, burst it                            dioxide than PET (the 
                                                                               dioxide than PET (the 
                                                                               packaging for plastic water 
        open, and drink your water!                                            packaging for plastic water 
                                                                               bottles)
                                                                               bottles)
        How Ooho’s packaging is made is a secret but we 
        can make something really similar. 
        Let’s make our own!
        Allow students to make 2-3 pods – you’ll want to 
        make sure you have extra when someone 
        accidentally pops one!
        Prepare ahead of time:
        -    Juice and sodium alginate mixture
                -   4.7 g sodium alginate per L juice 
                    (0.045 M)
                -   Use either a food safe blender or a 
                    hand-mixer to mix
        -    Calcium lactate or calcium chloride bath
                -   11.25 g calcium lactate/chloride per L 
                    water (0.034 M)
                -   Stir with food safe spoon or fork
        With students:
        -    Each student ladles a 2-3 scoops of 
             alginate/juice into the calcium bath
        -    Allow to sit ~5 min while hydrogel forms
        -    Give each student or student pair a plate for 
             their finished juice pods
                                                                 (c) 2017 beyondbenign - All rights reserved.
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...Green chemistry introduction what is does defining mean to you do think of good things or bad have students work in pairs for seconds come up who has heard with a definition break down the companies going meaning both words that establish science making products eco friendly environment sustainable pollution prevention at molecular chemists level basic design stage so it use wait time build off their prior knowledge acknowledge student responses and prompt them more information control conversation by asking certain number answers there anything this room are inventors they help just about chemist invented desks paint floor every product out etc traditionally were not taught taken medicine environmental impact toxicology we had many anyone an ipod mp advances helpful inventions but also player computer caused harm cell phone taking into account entire process energy efficiency renewable resources itself along end life would buy traditional cleaner costs safer set scene same bottle size...

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