Have you ever used sand to make art?  Mrs. Cassidy had a fun website on her blog called this is sand, where you can create your own sand art on the computer.  Click on my sand art to go to the website.  Once you are there, click on the small gray box at the top left to read the directions.  Have fun creating!  (If you like the site, you can visit Mrs. Cassidy's class blog and let them know you like it, too!)