Pacific Science Center

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PacSci-Doku: “Green Airline Food Service”

By Dennis Schatz – Senior Advisor

Do you Sudoku? It’s one of the hottest number games around! Well, here’s a twist we think you’ll love. We call it PacSci-Doku. Can you guess why? Here’s how it works. Instead of filling in the blanks with numbers, we use letters. Hidden in one of the columns or rows is the answer to a science question. You’ll find information about the answer on the answer tab below.

The question in this edition is:

What may make your future airline service more environmentally friendly?

To find the answer, complete this PacSci-Doku using the following nine letters:

E A a U N S G R C

PacSci-Doku Green Airline Foods

Puzzle Difficulty: Medium

The Answer

PacSci-Doku Green Airline Foods AnswerThe question in this edition is:

What may make your future airline service more environmentally friendly?

The answer: Sugar Cane

Airline passengers produce almost 7 million tons of waste each year.  Tons of plastic, paper and aluminum make up most of the packaging used to serve drinks and food on each flight.  Airlines are now working on ways to make this waste reusable, compostable or recyclable.  One environmentally friendly alternative is to make serving trays and utensils out of sugar cane and plant-based starches.  Qantas airlines flew it first zero-waste flight in May, and both KLM and Air France pledged to make major reductions in waste during the coming year. 

 Read more about environmentally friendly flying in the Travel Insider.



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Girl with flowers in her hair using a microscope