Describe change in attributes according to qualitative criteria such as longer/shorter, colder/warmer, heavier/lighter.

Links verified on 12/16/2009

1. Heaviest to Lightest - compare objects by deciding which is heaviest and lightest
2. Poddle Weigh-In - Hacker has removed all of the weights from the Poddles, you must use the scales to estimate their correct weight. or
3. Teaching Measures - Choose from three modules; length, mass, and capacity. Each category offers several activities for your large screen display as well as supporting worksheets. or
4. Which is Bigger? - select which of two objects is bigger