Field Adventures
Join us for Professional Learning in the field in Hawaii, Iceland and more.

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100+ resources, videos, activities,
demos, and more.

Courses
Take an online course and build your confidence and skils.

 

Discover Plate Tectonics PD Course

Join us as we learn about Plate Tectonics through this online professional development course.  Get the confidence to teach the topic through this 24+ hours PD course (certificate provided) by doing it at your own pace (now open).  Classroom activities and ideas are provided as part of the learning.

GEOetc Members get a huge discount! (US$99 for non-members).
Find out more about the course.

TAKE THE COURSE

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Trips for Educators and others
Trips for Geocachers

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Earth Science Snippets

Iceland for Educators 2023 - Photos

Iceland for Educators 2023 – Photos

An amazing trip with wonderful people- and here are just a few of the highlights in photos. Want to join …
Galapagos 2023 - Photos

Galapagos 2023 – Photos

See just a few photos from the trip in 2023.  What an amazing experience! …
Volcano Resources

Volcano Resources

If you are teaching your students about volcanoes, here are some great resources you can use in your classroom or …
Field gear for Geologists & Rockhounds

Field gear for Geologists & Rockhounds

So field season is just around the corner – and it’s time to make sure you have all the gear …
Radioactive dating and activity

Radioactive dating and activity

Have your students listen to this podcast on radioactive dating.  It goes just under 8 minutes.  Then have them do …
Which way is up?

Which way is up?

As the rocks on our planet are continually being moved around by Plate Tectonics, it is rare to find layers …
GEOetc Plate Tectonics Resources

GEOetc Plate Tectonics Resources

Here are all the free resources to help you learn and teach about Plate Tectonics. If you are a GEOetc …
Benioff Zones - earthquake evidence for subduction

Benioff Zones – earthquake evidence for subduction

When we look at the earthquake evidence for Plate Tectonics, one amazing feature is the Benioff Zoned earthquakes that show …
Are our school students really scientists?

Are our school students really scientists?

I think it is wonderful that we are having students ask meaningful questions and undertaking studies to try and answer …
Iceland 2021 Photos

Iceland 2021 Photos

Just some of the photos from our 2021 Iceland trip …
TESTeacher Earthquakes - Free version

TESTeacher Earthquakes – Free version

Welcome to The Earth Science Teacher. This is the quarterly member’s journal of GEOetc.com.   Each quarter a new topic is …
Lava won't kill you but these six things could!

Lava won’t kill you but these six things could!

Often the misconception people have is that lava is the most deadly thing about an erupting volcano!   But this is …
Plate Tectonic Cycles

Plate Tectonic Cycles

Plate Tectonic cycles have been happening on Earth as we know it today – with all its features – for …
Mineral and Rock Collection cards

Mineral and Rock Collection cards

I use mineral and rock collection cards with all my samples – even ones that are still sitting in plastic …
Milankovitch cycles - the Earth in space and climate.

Milankovitch cycles – the Earth in space and climate.

In the 1920’s a Serbian geophysicist and astronomer called Milutin Milankovitch suggested that long term variations in how the Earth …
Earth Science over a Virtual Coffee

Earth Science over a Virtual Coffee

We are currently dealing with changes in the way we communicate with each and our students due to the COVID-19 …
Columnar jointing

Columnar jointing

One of the most dramatic geological features found around our planet is columnar jointing formed from the cooling of molten …
What is the Lithosphere?

What is the Lithosphere?

Traditionally, when we talk about the layers of our planet we talk about the inner core, outer core, mantle, and …
Explore Lava Camp 2024

Explore Lava Camp 2024

Explore Lava Camp 2024 An intergenerational trip! (Parent/grandparent and child ages 12-16) Mid November 2024 This is a very special …
Mineral Identification - a guide.

Mineral Identification – a guide.

When you just start off exploring the wonders of minerals, working out mineral identification can seem a daunting task. It …
Gifts for Geologists & Rockhounds

Gifts for Geologists & Rockhounds

So you need to buy a for the geologist in your life?   Are you struggling to find something that will …
So you want to run a field trip? 20 tips and tricks!

So you want to run a field trip? 20 tips and tricks!

So you want to run a field trip? I have been leading field trips for over 30 years, and have …
Iceland 2019 Photos

Iceland 2019 Photos

Just some of the photos from our 2019 Iceland trips. Come join us in Iceland 2022 More details here …
Climate change and understanding science

Climate change and understanding science

I have spent a lot of time measuring the weathering rates of marble gravestones.  During my studies, I have discovered …
Why I don’t start Earth science by teaching rock and mineral identification

Why I don’t start Earth science by teaching rock and mineral identification

Many educators who are not Earth science trained, and many who are, flounder when trying to work out the best …
Scale - fields of view in geoscience

Scale – fields of view in geoscience

We view our planet using different scales.  Most people use just the local scale – they see what is immediately around …
Understanding Polar Reversals

Understanding Polar Reversals

Understanding polar reversals helps us to understand an important piece of evidence for Plate Tectonics. When molten rock cools, some …
Divergent Plate Boundaries

Divergent Plate Boundaries

One of the most amazing places on the Earth’s is where two massive tectonic plates are moving apart.  Almost 99% …
Volcanoes as a STEM teaching tool

Volcanoes as a STEM teaching tool

Trying to teach STEM (Science, Technology, Engineering, and Mathematics) in the classroom can often seem disjointed.  Having a STEM teaching …
Geologist Field Gear - the six "H" essentials!

Geologist Field Gear – the six “H” essentials!

What are the essential pieces of field gear for a geologist – or in fact any geology enthusiast?   What …
Olivine - one of simplest rock-forming minerals

Olivine – one of simplest rock-forming minerals

Olivine is one of the simplest silicate minerals that can be found in igneous rocks on our planet. All the …
Conference Posters - tips to make an impact

Conference Posters – tips to make an impact

So you have been successful in having your topic selected as one of the conference posters.  Good job! Presenting a …
Silicates - a simple guide to the Earth's rock forming minerals

Silicates – a simple guide to the Earth’s rock forming minerals

While high school students are taught about chemistry using simple examples of inorganic and organic substances, very few are exposed …
Geoscientists need to talk to the public

Geoscientists need to talk to the public

Too often scientists ignore talking to the public.  They would rather spend all their “communication” time and energy talking about …
Geological hammer - a beginners guide to buying your "forever hammer"

Geological hammer – a beginners guide to buying your “forever hammer”

A geological hammer is often seen as an essential part of any field geologists equipment.   Often called rock picks …
Cinder Cones - a unique volcanic feature.

Cinder Cones – a unique volcanic feature.

Cinder cones are volcanic features that are found at volcanic sites where there has been some form of fountaining activity.  Fire Fountains …
Evidence for Plate Tectonics

Evidence for Plate Tectonics

The evidence for Plate Tectonics is very conclusive.  It is a very well supported theory, and while scientific debate continues …
Boundaries - how the plates interact

Boundaries – how the plates interact

The Earth’s plates don’t just sit there.  They move and interact at their boundaries – and that is what makes …
Plates  - understanding the tectonic jigsaw pieces.

Plates – understanding the tectonic jigsaw pieces.

The Earth’s rocky outerlayer (the lithosphere) is broken up into around seventeen major pieces that we call tectonic plates.   …
The Earth's Crust - a simple way to view it.

The Earth’s Crust – a simple way to view it.

The Earth’s crust – that outermost rocky layer of our planet – can be daunting to understand.   To start …
Field Boots - an essential piece of equipment.

Field Boots – an essential piece of equipment.

If you are a geoscientist you are going to need field boots.   Even if you are being a “geoscientist” just …
Field Notes - what students need to learn to do.

Field Notes – what students need to learn to do.

Taking solid field notes is a skill that many students are not taught.  The days of a geologist’s life recorded …
Mica

There’s mica in my toaster!

Mica has been used for many purposes over time and even in my short lifetime I have seen it in …
Space Geeks Timeline

Space Geeks Timeline

Understanding time is something that geoscientists are just great at doing. But we get a little sick of people not understanding …
Lava flows - can you outrun a lava flow?

Lava flows – can you outrun a lava flow?

Most people believe that one of the major hazards of volcanoes are lava flows.   They are surprised to find …
Diamonds are NOT a girl's best friend

Diamonds are NOT a girl’s best friend

Diamonds are NOT a girl’s best friend – or so I tell my wife.  And here is why. All minerals …
Mapping lava flows - using color to work out relative ages

Mapping lava flows – using color to work out relative ages

Mapping lava flows using satellite images is a wonderful activity that you can do in your classroom.   In some …
Field trips - they are critical for teachers!

Field trips – they are critical for teachers!

Field trips are critical.  Learning Earth science in the field is as important as learning to cook in a kitchen …
Spot the cleavage - a characteristic often misunderstood.

Spot the cleavage – a characteristic often misunderstood.

Cleavage is an important diagnostic feature of minerals.  However it is often misunderstood.  And more often mistaken for another mineral …
How to experience an Earthquake

How to experience an Earthquake

Often we have to teach about phenomenon, like an earthquake, that our students have never experienced.  We can read eyewitness …
I love a dike - my geology hook.

I love a dike – my geology hook.

One of the reasons I fell in love with geology was finding evidence of igneous activity in the form of …
Not all that glitters is gold!

Not all that glitters is gold!

Gold – the metal on which many empires have grown (and withered) is a strange metal indeed.  In nature it …
EarthCache - Let the Earth be your teacher!

EarthCache – Let the Earth be your teacher!

An EarthCache is a special place that you can visit using GPS technology to learn more about the geology of …
How hard is mineral hardness?

How hard is mineral hardness?

How hard is a mineral?   Geoscientists still use mineral hardness as a way to identify an unknown mineral.  This …
Using a Circular Data Calendar

Using a Circular Data Calendar

We are all looking at ways to collect and display data with our students.  Most of the time the data …
The strange thing about Basalt.

The strange thing about Basalt.

Basalt. It’s the fine grained igneous rock that makes up the sea floor and sometimes spews forth from volcanoes on …
How long is deep time?

How long is deep time?

Deep Time is the term used by scientists to describe the vast amount of time that has passed since the …
What happened in the Permian?

What happened in the Permian?

The Permian period of time started around 299 million years ago when the Earth was in the deep freeze of …
Welcome to GEOetc

Welcome to GEOetc

G’day, Howdy and Hi, My name is Gary Lewis and I am an enthusiastic and passionate geoscientist.  I grew up …