PacSci-Doku - "Natural Filter"
By Dennis Schatz - Vice President of Strategic Development

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, use letters. Hidden in one of the columns or rows is the answer to a science question. The question in this edition is:

What acts as a natural water filter?

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

A O E S T D W N L

Each row and column in the grid below has to have only one of each of these letters. Each of the 3 x 3 mini-squares in the 9 x 9 square also needs to have only one of each letter.


PacSci-Doku
Puzzle Difficulty = Medium

Click the link below for the solution to this puzzle as well as more information on this edition's topic. The best way to keep up with PacSci-Doku, and everything happening at Pacific Science Center, is to subscribe to our free weekly newsletter. Just use the sign-up form on the left side of this page.

CLICK FOR THE SOLUTION!