GRIFFIS SCULPTURE PARK ... Located off Mill Valley Road between Ashford Hollow and East Otto ... June to September from Dawn to Dusk ... Area: 425 acres ... Adults $5
THIS IS SEASONAL (MAY 1 - OCT 31), BUT KEEPING IT ACTIVE FOR THOSE PLANNING A VISIT. IF YOU VISIT OTHER TIMES, YOUR LOG WILL BE DELETED. PLEASE BE RESPECTFUL OF THE REQUIREMENTS TO KEEP THIS CACHE ACTIVE.
EARTHCACHE REQUIREMENTS
Each cacher must send his/her own answers BEFORE logging a find. ... "Geocachers must complete the tasks before they log the EarthCache as found." (4.3. EarthCache logging tasks)
Enjoy the journey (learning adventure) as well as the destination (smiley earned). Remember to take only pictures and leave only footprints. To get credit for this Earthcache, complete the following tasks:
1. MESSAGE …. On the lawn at the entrance you will find the following two metal sculptures. ... a. What metal is sculpture A made of? What evidence of weathering is present? Name the sculpture. / b. What metal is sculpture B made of? What evidence of weathering is present? Name the sculpture.
2. MESSAGE …. Walk the trail and discover sculptures of four different metals and two different alloys that have been affected by weathering. .. a. Identify the metal. / b. Identify the type of weathering. / c. Name the sculpture. / d. Give its location either by using your GPS or by describing the area.
3. MESSAGE …. The sculptures in this park are predominantly made of a variety of metals. However, other materials are used either to create the whole sculpture or as parts of the sculpture. What are these materials?
4. MESSAGE …. Choose one of the metal sculptures. Compare what you see with the picture of the ore. Detail both similarities and differences.
5. LOG ... What sculpture did you find most interesting? ... a. Post picture of you or your signature item at this sculpture. This picture is your log signature. / b. What metal/alloy is this sculpture made from?
OPTIONAL - Please respect the time and effort involved in creating this earthcache by adding A and B to your log.
A. JOURNEY OF THE MIND ... Science explains what we observe. Relate (in your own words) something you found interesting in the reading. This adds to your learning adventure and your log.
B. JOURNEY OF THE HEART ... Art shares our personal experience of what we see. Share something special you found on site, and why it is special to you. This is a memorable addition to your log and will make other hearts smile.
Journeys of Heart and Mind ...
Stories to Touch the Heart and Puzzles to Challenge the Mind / Rainbow Tree Story
THANK YOU Nila Griffis Lampman for permission to share this learning adventure.
METALS
-Metals are elements that are good conductors of heat and electricity. They are opaque, malleable, ductile, and lustrous.
-The following metals are displayed as sculptures or parts of sculptures: Aluminum / Copper / Iron / Lead / Nickel / Tin / Zinc
ALLOYS
-Alloys are a mixture of two or more metals to increase strength and resistance to corrosion.
-The following alloys are displayed as sculptures or parts of sculptures: brass (copper and zinc) / bronze (copper and tin) / steel (iron and carbon) / stainless steel (steel and chromium)
CHEMICAL WEATHERING OF METALS
Metals are predominantly changed by chemical weathering. This changes the composition of the metal.
CORROSION - The gradual destruction by chemical and/or electrochemical reaction with the environment. "Metals corrode because we use them in environments where they are chemically unstable. Only copper and the precious metals (gold, silver, platinum, etc.) are found in nature in their metallic state. All other metals, to include iron-the metal most commonly used-are processed from minerals or ores into metals which are inherently unstable in their environments." https://corrosion.ksc.nasa.gov/corr_metal.htm
HYDROLYSIS - The reaction of water in the form of a weak acid to dissolve metals.
OXIDATION - The reaction of oxygen with metals to form oxides.
PATINA - Tarnish on copper-based metals giving them a greenish hue.
RUST - Oxidation of iron that turns it into iron oxide giving it an orange-red hue.
TARNISH - Discoloration of a metal when only the outermost layer undergoes a chemical reaction. This layer of tarnish seals and protects the underlying layers from reacting.
MECHANICAL WEATHERING OF METALS
Metals may also be changed by mechanical weathering. This alters the appearance, but does not change the composition.
FROST WEDGING - Cracks due to repeated cycles of freeze-thaw.
PITTING - Small depressions due to wind abrasion.
RESOURCES ... Sculpture Park ... Chemical Weathering
http://geology.com/rocks/iron-ore.shtml
http://www.neelkanthsinks.com/whatissteel.aspx
http://www.chemguide.co.uk/inorganic/extraction/iron.html
https://www.azahner.com/resources/metal-aging
http://www.doremetals.co.uk/z-types-commonly-found-metals/
http://www.ebay.com/gds/Guide-to-Different-Types-of-Metals-and-Alloys-/10000000177634500/g.html
https://photographicdictionary.com/metals
Ancient Trade Uses of Metals & Minerals Earthcache https://coord.info/GC3QZGT
Heavy Metal Rock https://coord.info/GC67AVX
White Bronze https://coord.info/GC1MJXA