Snippets

Here are just some of the photos of our special trip to cache on the active volcanoes of Hawaii in ...
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Have your students listen to this podcast on radioactive dating.  It goes just under 8 minutes.  Then have them do ...
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As the rocks on our planet are continually being moved around by Plate Tectonics, it is rare to find layers ...
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Here are all the free resources to help you learn and teach about Plate Tectonics. If you are a GEOetc ...
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When we look at the earthquake evidence for Plate Tectonics, one amazing feature is the Benioff Zoned earthquakes that show ...
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I think it is wonderful that we are having students ask meaningful questions and undertaking studies to try and answer ...
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Just some of the photos from our 2021 Iceland trip ...
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Welcome to The Earth Science Teacher. This is the quarterly member's journal of GEOetc.com.   Each quarter a new topic is ...
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Often the misconception people have is that lava is the most deadly thing about an erupting volcano!   But this is ...
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Plate Tectonic cycles have been happening on Earth as we know it today - with all its features - for ...
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I use mineral and rock collection cards with all my samples - even ones that are still sitting in plastic ...
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In the 1920's a Serbian geophysicist and astronomer called Milutin Milankovitch suggested that long term variations in how the Earth ...
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We are currently dealing with changes in the way we communicate with each and our students due to the COVID-19 ...
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One of the most dramatic geological features found around our planet is columnar jointing formed from the cooling of molten ...
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Traditionally, when we talk about the layers of our planet we talk about the inner core, outer core, mantle, and ...
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When you just start off exploring the wonders of minerals, working out mineral identification can seem a daunting task. It ...
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So you need to buy a for the geologist in your life?   Are you struggling to find something that will ...
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So you want to run a field trip? I have been leading field trips for over 30 years, and have ...
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Just some of the photos from our 2019 Iceland trips. Come join us in Iceland 2022 More details here ...
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I have spent a lot of time measuring the weathering rates of marble gravestones.  During my studies, I have discovered ...
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Many educators who are not Earth science trained, and many who are, flounder when trying to work out the best ...
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We view our planet using different scales.  Most people use just the local scale - they see what is immediately around ...
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Understanding polar reversals helps us to understand an important piece of evidence for Plate Tectonics. When molten rock cools, some ...
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One of the most amazing places on the Earth's is where two massive tectonic plates are moving apart.  Almost 99% ...
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Trying to teach STEM (Science, Technology, Engineering, and Mathematics) in the classroom can often seem disjointed.  Having a STEM teaching ...
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What are the essential pieces of field gear for a geologist - or in fact any geology enthusiast?   What ...
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Olivine is one of the simplest silicate minerals that can be found in igneous rocks on our planet. All the ...
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So you have been successful in having your topic selected as one of the conference posters.  Good job! Presenting a ...
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While high school students are taught about chemistry using simple examples of inorganic and organic substances, very few are exposed ...
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Too often scientists ignore talking to the public.  They would rather spend all their “communication” time and energy talking about ...
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A geological hammer is often seen as an essential part of any field geologists equipment.   Often called rock picks ...
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Cinder cones are volcanic features that are found at volcanic sites where there has been some form of fountaining activity.  Fire Fountains ...
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The evidence for Plate Tectonics is very conclusive.  It is a very well supported theory, and while scientific debate continues ...
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The Earth's plates don't just sit there.  They move and interact at their boundaries - and that is what makes ...
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The Earth's rocky outerlayer (the lithosphere) is broken up into around seventeen major pieces that we call tectonic plates.   ...
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The Earth's crust - that outermost rocky layer of our planet - can be daunting to understand.   To start ...
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If you are a geoscientist you are going to need field boots.   Even if you are being a "geoscientist" just ...
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Taking solid field notes is a skill that many students are not taught.  The days of a geologist's life recorded ...
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Mica has been used for many purposes over time and even in my short lifetime I have seen it in ...
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Understanding time is something that geoscientists are just great at doing. But we get a little sick of people not understanding ...
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Most people believe that one of the major hazards of volcanoes are lava flows.   They are surprised to find ...
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Diamonds are NOT a girl's best friend - or so I tell my wife.  And here is why. All minerals ...
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Mapping lava flows using satellite images is a wonderful activity that you can do in your classroom.   In some ...
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Field trips are critical.  Learning Earth science in the field is as important as learning to cook in a kitchen ...
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Cleavage is an important diagnostic feature of minerals.  However it is often misunderstood.  And more often mistaken for another mineral ...
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Often we have to teach about phenomenon, like an earthquake, that our students have never experienced.  We can read eyewitness ...
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One of the reasons I fell in love with geology was finding evidence of igneous activity in the form of ...
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Gold - the metal on which many empires have grown (and withered) is a strange metal indeed.  In nature it ...
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An EarthCache is a special place that you can visit using GPS technology to learn more about the geology of ...
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How hard is a mineral?   Geoscientists still use mineral hardness as a way to identify an unknown mineral.  This ...
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We are all looking at ways to collect and display data with our students.  Most of the time the data ...
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Basalt. It's the fine grained igneous rock that makes up the sea floor and sometimes spews forth from volcanoes on ...
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Deep Time is the term used by scientists to describe the vast amount of time that has passed since the ...
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The Permian period of time started around 299 million years ago when the Earth was in the deep freeze of ...
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G'day, Howdy and Hi, My name is Gary Lewis and I am an enthusiastic and passionate geoscientist.  I grew up ...
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