What is a sinkhole? Where are they found? What causes them? This text based article will provide the answer to these questions, and more!

Slope failure is the downslope movement of rock debris and soil in response to gravitational stresses. Three major types of mass wasting are classified by the type of downslope movement. The types of movement, falls, slides, and flows...

A unit on rocks and minerals presented with interactive and classroom activities. Gain understanding of rocks, weather, erosion, earthquakes, and relative dating with this resource.

Learn about physical and chemical weathering.

Students get a whole new perspective of the world through images obtained from the International Space Station. Students can even request images to be taken through ISS EarthKAM. Activities and educator guides are provided.

This is written to support and further your content learning about the dynamic nature of Earth's surface. The goal is for you to develop a conceptual understanding of landforms so that you will be able to more effectively teach...

Discover the ways in which the Earth's surface is always changing and what causes those changes through reference materials and a collection of activities.

This lesson is a demonstration in how geological layers form and erode using just a stack of towels. The author describes this lesson as GeoArt, which means one looks at geologic processes through both a scientific and an artistic lens.

An all purpose site with something for everyone. Learn about global warming and climate change, ask a scientist, take a quiz, or get a lesson plan!

This digital textbook covers core earth science concepts and includes interactive features, real-world examples, videos, and study guides.

Informative site about mountains. Look at the picture and read all about mountains, then take a quiz to show how much you know!

Site from the Southern Kings Consolidated School about mountains. Learn what mountains are and how they form.

A slideshow, a karaoke song to sing along to, and a short multiple-choice quiz on sedimentary rocks and how they are formed.

A collection of puzzles, activities, lessons, and games related to Mammoth Cave, cave systems in general, and related topics, such as fossils, bats, weathering, and erosion.