[Free Registration/Login may be required to access all resource tools.] This study guide summarizes key points about how sedimentary rocks are classified. Includes a few questions to check for understanding.

[Free Registration/Login may be required to access all resource tools.] Explains that sedimentary rocks are classified by how they formed and by grain size.

Article explaining what limestone is, how it is formed, where it occurs, the different types, and how it has been used throughout history. (Published: August 8, 2010)

[Free Registration/Login may be required to access all resource tools.] Presents the three major rock types and the rock cycle.

[Free Registration/Login may be required to access all resource tools.] Summarizes the key points about how the three types of rocks form and convert from one to another. Includes a few questions to check for understanding.

Learn about the differences and similarities between the three different types of rocks on this page.

Astrid lives in Norway, and really likes Viking ships and rocks. She is visiting a Viking museum, and needs help learning about different types of rocks, where rocks come from, and the different characteristics of rocks.

In-depth resource for identifying rocks. Includes an interactive rock identification key to help you figure out the name of your rock.

In this earth science lab, students will find, identify, and create a visual presentation of the rocks that are found around their school. They will determine the mass, volume, density, color, texture, and hypothesize what each rock is....

The Franklin Institute describes the way sedimentary rock is formed, with links to descriptions of several types of sedimentary rocks.

Game through which students order layers of sedimentary rock, from oldest to newest, based on the type of fossils they contain.

Eight hands-on lessons module where students learn about rocks and landforms. These inquiry-based investigations explore the different types of rocks, how they are formed, the different types of landforms, and the effects of glaciers on...

Covers the three main types of rocks, different weathering processes, erosion, and the rock cycle.

A well-designed lesson on rocks where students first learn about how the three categories of rocks form (sedimentary, igneous, and metamorphic), then must examine the features of different rock samples, and determine which category each...

Essential guide to geology of the National Parks focuses on minerals and the different types of rocks. Includes a visual glossary.

Middle schoolers learn the components of the rock cycle and how rocks can change over time under the influence of weathering, erosion, pressure and heat. They learn about geotechnical engineering and the role these engineers play in the...

This tutorial explains the rock cycle--from beginning to end! It is full of activities, assessments, games, slideshows and all kinds of interactive material. Learn what rocks are made of and how they change from one form to another....

Rocks hold the history of the earth and the materials that will be used to build its future. This website holds a treasure of information regarding igneous, metamorphic and sedimentary rocks.

Test your knowledge of different types of rocks by taking a quiz. Determine if each picture shows an igneous, metamorphic, or sedimentary rock.

A good resource if you want a quick overview of the formation process for igneous, metamorphic and sedimentary rock.

Explore the different types of rocks on our Earth as you watch a one-hour video, accompanied by learning goals, details on sedimentary rocks, fossils, and supercontinents, and more.

In this activity, students learn how sedimentary rocks form by making three different types.

Explains what sedimentary rocks are, the three main types, and how they are formed.

This resource explains the depositional processes that occur in sedimentary rock formation to produce stratification, cross-bedding, graded bedding, rippled effects, and solidified mud cracks. Includes photographs of each type.