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Iron Meteorite
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Caption: This iron meteorite was originally found in Harriman, Tennessee, USA and is now held in the collection of the Smithsonian Natural History Museum, Washington DC, USA. The total mass of the meteorite was about 30kg. Here we see the interior after the meteorite was cut into pieces.
Iron meteorites are largely composed of an iron-nickel. They also often have a crystalline structure which manifests here as a series of crossing shiny straight lines known as a Widmanstätten pattern. This is thought to have formed as the meteoroid (the object that would eventually fall through the Earth's atmosphere as a meteor and land on the ground as a meteorite) cooled very slowly in the vacuum of space in the early solar system. This led to the growth of this crystalline structure.
Credit: Chuck Sutherland
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Glosar de termeni:
Iron Meteorite , Meteorite , Shooting Star
Categories:
Planet Earth
, Solar System
License: Public Domain Public Domain icons
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Meteoroids, Meteors and Meteorites astroEDU educational activity (links to astroEDU website) Origin: astroEDU Description: Unveiling the mystery of "shooting stars": meteors, meteorites and meteroids
Glosar de termeni:
Asteroid , Comet , Crater , Earth , Meteorite , Meteoroid , Shooting Star
Categories:
Planet Earth
, Solar System
Tags:
Geology
Age Ranges:
6-8
, 8-10
, 10-12
, 12-14
Education Level:
Middle School
, Primary
Areas of Learning:
Interactive Lecture
Costs:
Low Cost
Duration:
1 hour 30 mins
Group Size:
Group
Skills:
Analysing and interpreting data
, Asking questions
, Communicating information
, Engaging in argument from evidence
Authors: Christian Eistrup, Jorge Rivero González, Ronan Smith
License: Creative Commons Atribuire 4.0 Internațional (CC BY 4.0) Creative Commons Atribuire 4.0 Internațional (CC BY 4.0) icons
