Amesbury:&lt;br /&gt;
Annika Welch, 8, compares a rock under a microscope with a reference guide as she tries to identify differents rocks from a collection her older brother gave her. She was in Peggy Laufer's class at Cashman Elementary School in Amesbury where the children were in &quot;plan it&quot; period where they planned different experiments and followed through with them.&lt;br /&gt;
Photo by Bryan Eaton/Newburyport Daily News Monday, March 23, 2009