Pacific Science Center

Bringing science to life.

 

PacSci-Doku: “Green Building Blocks”

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 should be made from renewable or recycled material by 2030?

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

I  E  O  K  L  C  G  R  B

PacSci-Doku: "Green Building Blocks"

Puzzle Difficulty: Medium

The Answer

PacSci-Doku: "Green Building Blocks" Answer

The question in this edition is:

What should be made from renewable or recycled material by 2030?

The answer: Lego Brick

Each day, Lego produces 100 million Lego bricks, trees, dolls and other parts to go in Lego kits. Some of the non-brick components are now being made from sugar-cane husks, but all bricks are currently made from a petroleum-based plastic, called ABS (acrylonitrile butadiene styrene). It has just the right elasticity, so the parts click together well, but can be easily separated. They are not easily broken, even when stepped on. Lego’s goal is to find a combination of plant-based and/or recycled material to replace the current ABS by 2030. They have already tried 200 options as a replacement, but nothing yet meets the demanding requirements. Read more about Lego’s effort to produce “green” building blocks.

 

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