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Earth's Crust Elements Quiz Stats

Quiz Updated Aug 21, 2012

Also try: Tectonic Plates
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Score 0/10 Timer 02:00
22 Plays Today
Approx. % in weight Element % Correct
47%Oxygen
83.1%
5%Iron
81.3%
.1%Hydrogen
73%
27%Silicon
50.6%
2%Magnesium
49.9%
8%Aluminium
48.1%
3%Sodium
46.1%
4%Calcium
43.6%
2.5%Potassium
42.5%
.5%Titanium
20.4%

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