PicoBuddy

From Giant Wind Turbines to Gummy Bears

CChelsea7º anoInformativo4 min de leitura
Ilustração de From Giant Wind Turbines to Gummy Bears

Wind energy is one of the fastest-growing sources of clean, renewable electricity across the globe. Towering hundreds of feet into the sky, modern wind turbines harvest the natural power of moving air without burning fossil fuels or releasing harmful greenhouse gases. However, these colossal machines face a significant environmental dilemma at the end of their operational lifespan. Wind turbine blades, which can measure longer than a football field, are typically built from fiberglass and thermoset plastic resins. These materials are engineered to endure decades of extreme weather, lightning strikes, and relentless mechanical stress. Because they are designed never to degrade, traditional blades are virtually impossible to recycle economically, leaving thousands of retired blades to pile up in municipal landfills.

To solve this mounting waste crisis, chemical engineers at Michigan State University developed an innovative material that could completely change the life cycle of renewable energy infrastructure. The researchers created a novel composite resin that blends plant-derived polymers with synthetic materials and glass fibers. This new resin is just as strong and resilient as standard industrial plastics, but it possesses a critical advantage: unlike traditional materials, it can be chemically broken down and completely reprocessed when the turbine is decommissioned.

Glossário
renewable:
Capable of being replenished naturally and not depleted by use.
thermoset:
Relating to plastics that set permanently into shape when heated and cannot be melted again.
composite:
A material made by combining two or more distinct substances with different physical properties.
polymers:
Large molecules composed of many repeated smaller chemical units bonded together.
depolymerization:
A chemical process that breaks down large polymer chains into smaller molecules or base units.
alkaline:
Having a high pH value; basic rather than acidic in chemical nature.
precursors:
Substances from which another compound or material is formed through a chemical reaction.
circular economy:
An economic system aimed at eliminating waste through the continual reuse and recycling of resources.
Carregando perguntas...

More sheets from this passage

Built from the text itself — answer key included where it counts.

  • fix the sentence

    Sentences from the passage with the capitals and punctuation removed — rewrite each one correctly.

  • vocabulary

    Match the passage words to their meanings, then fill the missing words back into real sentences.

  • writing prompts

    Two writing tasks that build on the passage, with plenty of lines to write on.

  • All 6 sheets as one workbook
    Pro

    One PDF with a cover, contents page and every answer key at the back.

Você também pode gostar

Sobre este texto de informativo para o 7º ano

“From Giant Wind Turbines to Gummy Bears” é um texto de informativo sobre Green Chemistry, escrito para o 7º ano. A leitura leva cerca de 4 minutos (530 palavras). O texto inclui um quiz interativo e uma atividade para imprimir com perguntas de compreensão e gabarito.

Este texto é gratuito?

Sim. Com uma conta gratuita, você pode ler “From Giant Wind Turbines to Gummy Bears” online e baixar uma atividade em PDF com perguntas de compreensão e gabarito.

Para qual ano escolar é “From Giant Wind Turbines to Gummy Bears”?

O texto foi escrito para o 7º ano: um texto de informativo sobre Green Chemistry, com leitura de aproximadamente 4 minutos (530 palavras).

O que acompanha este texto?

Um texto ilustrado, um glossário de termos importantes, perguntas de compreensão com gabarito e um quiz interativo.

Posso adaptar o texto para meus alunos?

Sim. O Remix está incluído nos planos Pro e Max para adaptar o texto a outro ano escolar ou idioma.