Posted on April 16, 2022 (Updated on July 9, 2025)
What part of a glacier moves the fastest?
Regional SpecificsThe ice in the middle of a glacier flows faster than the ice along the sides of the glacier. What part of the glacier flows the fastest Why? When the lower ice of a glacier flows, it moves the upper ice along with it, so although it might seem from the stress patterns (red numbers
Posted on April 16, 2022 (Updated on July 9, 2025)
How are seismometers used to detect earthquakes?
Regional SpecificsSeismometers allow us to detect and measure earthquakes by converting vibrations due to seismic waves into electrical signals, which we can then display as seismograms on a computer screen. Seismologists study earthquakes and can use this data to determine where and how big a particular earthquake is. How do seismometers work? An instrument sensitive to
Posted on April 16, 2022 (Updated on July 9, 2025)
What is the biggest crystal?
Regional SpecificsThe largest authenticated crystal of any type is a beryl from Malakialina, Malagasy Republic, being 18 m in length, 3.5 m in diameter, having a volume estimated at 143 m3 and a mass approximately 380,000 kg. Where is the largest crystal in the world? The World’s Largest Crystals Are Growing in a Cave in Mexico
Posted on April 16, 2022 (Updated on July 9, 2025)
How many earthquakes are there in a day?
Regional SpecificsEarthquakes are always happening somewhere, and the National Earthquake Information Center locates about 12,000-14,000 earthquakes each year. On average, earthquakes of magnitude 2 and smaller occur several hundred times a day worldwide, while large earthquakes of magnitude 7 and larger occur more than once a month. The National Earthquake Information Center now locates about 20,000
Posted on April 16, 2022 (Updated on July 9, 2025)
Where are trace fossils found?
Regional SpecificsTrace fossils are best preserved in sandstones; the grain size and depositional facies both contributing to the better preservation. They may also be found in shales and limestones. Where can you find a trace fossil? Trace fossils most often were created in soft sediments, and are usually preserved only if the sediment remains undisturbed until
Posted on April 16, 2022 (Updated on July 9, 2025)
Why do small rocks weather more quickly?
Regional SpecificsLarge rocks have less surface area for their volume than small rocks. Therefore, a smaller portion of the rock is exposed to weathering. It takes longer for the rock to wear away. The small rock has more surface area for its vol- ume, so it weathers away faster. What type of rocks weather more easily?