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In this episode, I talk about how sand moves along a beach due to longshore drift. Visit our GEOetc Members Section - Over 100 teaching resources that are classroom-ready to help you teach Earth science. Check them out!Support the show

In this episode, I talk about how volcanic eruptions can affect climate - by releasing ash, gas, and aerosols.  We talk about the role of CO2 and SO2 and what effect they may have.   I talked specifically about Pinatubo, Tambora, and the Laki eruptions. I also mention an activity available for GEOetc Members called Climeworld that members can download and use in their classrooms to show students how the volcano's location can affect climates in different hemispheres. Visit our GEOetc Members Section - Over 100 teaching resources that are classroom-ready to help you teach Earth science. Check them out!Support the show

In this episode, I talk about the difference between the terms focus and epicenter.  What do the terms mean and how are they used?  How is the information about an earthquake's focus used?  How about the information about the epicenter of an earthquake? Visit our GEOetc Members Section - Over 100 teaching resources that are classroom-ready to help you teach Earth science. Check them out!Support the show

In this episode, I talk about what is causing the Pacific Ring of Fire.   Why do 75% of all active volcanoes and 90% of all earthquakes happen around the edge of the Pacific Ocean? Visit our GEOetc Members Section - Over 100 teaching resources that are classroom-ready to help you teach Earth science. Check them out!Support the show

In this episode, I talk about diamonds - where they form, how they are brought to the surface and even about different colors and uses. Visit our Members Section - Over 100 teaching resources that are classroom-ready to help you teach Earth science. Check them out!Support the show

In this episode, I talk about index fossils - what are they and what makes one fossil better than another for dating layers in a sedimentary sequence.   I aven leave you pondering what human product would make a great index fossil. Visit our GEOetc Members Section - Over 100 teaching resources that are classroom-ready to help you teach Earth science. Check them out!Support the show

In this episode, we talk about the main causes of landslides and provide examples - California and Thredbo, NSW, Australia.  What is the role of water?  What about trees and deforestation?   How can earthquakes be involved etc?This is a great introduction to landslides as a natural disaster.Support the show

Rocks can contain radioactive elements that breakdown (decay) over time at a set rate.  We can use this decay to work out the age of the rocks.  In this episode, we do a brief look at the process, and how we know it works.Visit our Members Section - Over 90 teaching resources that are classroom-ready to help you teach Earth science. Check them out!Support the show

Where did the Theory of Plate Tectonics come from? How did it evolve? What started it all off and how did new evidence change the theory? Visit our Members Section - Over 90 teaching resources that are classroom-ready to help you teach Earth science. Check them out!Support the show

What drives the movement of the Earth's huge lithospheric tectonic plates? In this episode, we talk about mantle convection currents and slab pull - the too well-accepted theories for what is driving Plate Tectonics. Visit our Members Section - Over 90 teaching resources that are classroom-ready to help you teach Earth science. Check them out! Don't miss a thing!   Join our email list.Support the show

Why do we see such variation in the sand around the world - white, yellow, black and green, and more!  What can the grains of sand tell us about the age of the sand?   And how can sand on an island that contains just black rocks have white sand?   This one is for the sand collectors!Support the show

Earth scientists in the field recognize that a sequence of rocks may be missing layers of rocks that represent a period of time.  We call those unconformities.  In this episode, we discuss what an unconformity is and the four main types of unconformities - angular, paraconformity, disconformity, and nonconformity. Don't miss a thing!   Join our email list. Support what I do to help you...Support the show

How do we know about the inside of the Earth?   Using earthquake waves and visitors from out of space (meteorites), we can see the layers and work out the chemistry of the layers that make up our planet.Visit us at GEOetc.com to learn more about our amazing planet!Support the show

Trilobites are amazing fossils!  They can be used for accurate correlation between sedimentary layers because they evolved rapidly, lived in almost all marine environments, and have exoskeletons that were easy to preserve.    Here is a link to the activities mentioned in the episode: Trilobite ID Trilobite (and other fossil) modelsSupport the show

The Earth is made up of layers - and we can define those layers in two ways  - as being chemical (crust, mantle, core) or mechanical (lithosphere, asthenosphere, mesosphere, outer core, inner core).  This episode explains the layers and why they are important for plate tectonics and more.Teachers can download a worksheet for their students to complete based on the content of this episode right here :  https://geoetc.com/earths-layers-free/Support the show

What is a glacier?  How is it formed?  Where can I find them and how are they classified?Support the show

A dike is a planar igneous intrusion that cuts through the existing rocks.  They have always fascinated me - and in this episode, I talk a little about them and why I think they are awesome!Support the show

Why does the island of Iceland exist?  Learn how two major geological phenomena occur together to make this amazing and unique place on our planet.  Plate Tectonics and Mantle Plumes interact to provide us with a beautiful island.Support the show

In this episode I discous how magma chemistry and water work together to create the massive explosive eruptions of Tonga (January 15th, 2022) and  Krakatoa (1883).Support the show

Hawaii is a wonderful place to see, learn and teach about aspects of Earth Science.  In this episode I mention six reasons Hawaii is a place to visit if you love Earth science.Support the show