Books published by publisher Crabtree Publishing Co,Canada (31 Dec. 2009)

It all starts with erosion for sedimentary rock. Worn down bits of rock become pressed together under pressure into strata, or layers. The formation of rock such as sandstone, shale, limestone, and dolomite is explained in this fact-filled book. Readers will also learn that this type of rock is useful in determining the Earths geological history because its layers often hold fossils and other geol

Children love to take an active role in helping around their homes. This busy book shows children doing chores inside the house by cleaning and washing dishes, as well as outside, by raking leaves and sorting materials for recycling. Taking care of other siblings and pets are also important jobs children can do. An activity asks children which jobs they do at home and suggests ways to make the job...