Minerals
Task
You want to buy your best friend a birthstone for his/her birthday. Which birthstone do
you choose? What are some of its properties?
Resources:
http://www.burkemuseum.org/geology/birthstones
http://www.galleries.com/birthstones
http://wayback.archive-it.org/3635/20130719112157/http://library.thinkquest.org/5810/birthstones.htm#
http://www.americangemsociety.org/birthstones.htm
Rocks
Task
For a project, you must find out how many active volcanoes there are on the Earth.
Does “active” mean that a volcano is erupting now? Why do some websites give
different numbers?
Resources:
http://volcanoes.usgs.gov/about/faq/index.php
http://pubs.usgs.gov/gip/monitor/intro.html
http://volcano.und.edu/vwdocs/frequent_questions/top_101/Interesting/Interesting2.html
http://vulcan.wr.usgs.gov/LivingWith/VolcanicFacts/misc_volcanic_facts.hhl
http://www.volcanodiscovery.com/volcano-tours/volcanoes/faq/how_many_volcanoes.html
http://www.volcano.si.edu/faq/index.cfm?faq=03
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