It is a very simple investigation to set up and one that kids loves at it involves searching for insects, and then predicting and watching. (science-sparks.com)
Simple investigation into reversible and non reversible changes. (tes.com)
Elementary students in 10 city school systems struggled to perform simple investigations, interpret basic graphs and diagrams, and understand scientific classifications and relationships, concludes a first - ever report on the science skills of students in large urban districts released today. (edweek.org)