"Compares and contrasts common rough and smooth objects, both in nature and man-made. Includes comprehension activity"--Provided by publisher.

The rocks you see everyday can be grouped into different types, like igneous, sedimentary, or metamorphic. Some rocks are actually minerals, and you can even fi

Provides examples and illustrations of touch, one of the five senses.

A digital solution for your classroom with features created with teachers and students in mind: - Perpetual license - 24 hour, 7 days a week access - No limit t

Learn how to tell if something is stiff or bendable and which materials have these properties.