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Jam tectonics
Boiling jam will often create a froth that floats on top, much like the granitic continental crust floats on the Earth’s mantle. Also like the boiling jam, the mantle convects (even though the mantle...
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Limestone Trails at Montgomery Bell State Park
View Limestone Bed Hike at Montgomery Bell in a larger map This short hike that follows a limestone bedded creek, will likely take a while because there’s quite a bit of geology to see. The start of...
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Plate Tectonics and the Earthquake in Japan
The magnitude 8.9 earthquake that devastated coastal areas in Japan shows up very clearly on the United States Geologic Survey’s recent earthquake page. The big red square marks an aftershock of the...
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Volcanic eruption in Japan: Shinmodake
Shinmodake Volcano in southern Japan (center). This picture predates the big earthquake. Image from NASA Earth Observatory: Shinmoe-dake Volcano Erupts on Kyushu.. The Shinmoedake Volcano erupted on...
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The Freezing Core Keeps the Earth Warm
The internal structure of the Earth. The inner core of the Earth is made of solid metal, mostly iron. The outer core is also made of metal, but it’s liquid. Since it formed from the solar nebula, our...
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Electromagnets
Electric Currents Generate Magnetic Fields (36.5) An electric current in a wire creates a magnetic field around the wire. Image adapted from Wikimedia Commons User:Stannard. Moving charges create...
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The Geology of St. Albans, Missouri
The area around the Fulton School has just two types of geology: young, floodplain sediments; and old limestone bedrock. The geology of St. Albans consists of young floodplain sediments (yellow), and...
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Cave Formation in the Ozarks
Ceiling of Twin Cave. Rain falls. Some runs off, Some seeps into the ground. Water drips from the tips of limestone straws on the roof of Twins Cave. It trickles through soil. Leaching acids, organic,...
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Buffalo vs. Bisons: Using their Phylogenetic Classification to Estimate the...
Classification of american bison and water buffalos. American bison (Bison bison) are native to North America, while water buffalo (Bubalus bubalis) are from Africa. They are different species, and...
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Assessment with the Toilet Paper Timeline of Earth History
With a larger class, and quite a bit of space in the gym, I had more flexibility working on the toilet paper timeline compared to the last time. Labeling the timeline in the gym. I built in a friendly...
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Plate Tectonics on the Eminence Immersion
The picture of a convergent tectonic boundary pulls together our immersion trip to Eminence, and the geology we’ve been studying this quarter. We saw granite boulders at Elephant Rocks; climbed on a...
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Seeing the Rock Cycle in the Ozarks
On this year’s trip to the Current River with the Middle School we were able to see outcrops of the three major types of rocks: igneous, metamorphic, and sedimentary. Igneous Rocks Beautiful, pink...
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