Online College Courses for Credit

The Rock Cycle

The Rock Cycle

Author: Laura Provost

4.   The properties of rocks and minerals reflect the processes that formed them. As a basis for understanding this concept:

a.   Students know how to differentiate among igneous, sedimentary, and metamor­phic rocks by referring to their properties and methods of formation (the rock cycle).

This tutorial is for 4th Graders. 

See More
Fast, Free College Credit

Developing Effective Teams

Let's Ride
*No strings attached. This college course is 100% free and is worth 1 semester credit.

29 Sophia partners guarantee credit transfer.

311 Institutions have accepted or given pre-approval for credit transfer.

* The American Council on Education's College Credit Recommendation Service (ACE Credit®) has evaluated and recommended college credit for 27 of Sophia’s online courses. Many different colleges and universities consider ACE CREDIT recommendations in determining the applicability to their course and degree programs.


Types of Rocks

There are 3 types of rocks. They are sedimentary, metamorphic, and igneous. These three types of rocks are formed in different ways.

Igneous Rocks

This is a video on how Igneous Rocks are formed.

Source: Igneous Rocks video fro kids by (2012, April 14). Retrieved May 5, 2015, from

Sedimentary Rocks

This video discusses how Sedimentary Rocks are formed.

Source: Sedimentary Rocks Video for kids by (2012, April 14). Retrieved May 5, 2015, from

Metamorphic Rocks

This video discusses how Metamorphic Rocks are formed.

Source: Metamorphic Rocks video for kids by (2012, April 14). Retrieved May 5, 2015 from

Interactive Rock Cycle

This link will take you to the Annenberg Learner website. This website will provide you with a review of the Rock Cycle as well as the differences between the three types of rocks. Explore the Rock Cycle diagram on the link for an extra review.


Source: The Rock Cycle Diagram. (n.d.). Retrieved May 5, 2015, from

Homework (The Big Question)

Now that you are done reviewing the three types of rocks, for homework I want you to look around your house or neighborhood and bring a rock to school. Make sure that the rock you pick is either a sedimentary, metamorphic, or igneous rock. Be prepared to tell the class how the type of rock was made and why you think it's one of the three types of rocks.