Hardness Collection On Card
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Minerals have many different properties which make then unique from one another. One of the most obvious distinctions is the hardness.
The Moh's Hardness Scale collection is mounted on a 13.9cm x 18.1cm full color cardstock which holds 9 specimens in their order from the softest (#1 Talc) to the hardest (#10 Diamond – not included).
There are indicators on the card which instruct the students on what will affect the surface of each of these specimens to better help them understand each mineral's property.
Age: 7 +
What You Get
Hardness Collection on Card. This economy version of the Hardness Collection has specimens measuring 1.2cm to 1.9cm in size.
The card is packaged in a resalable zip lock bag.
|Age Group||7-8 Years, 9-10 Years, 11-12 Years, 12+ Years|