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Space is huge and understanding magnitude of numbers is vital. Print and use these 25 cards to sort in order of size, from the width of DNA to the distance from Earth to the Andromeda galaxy. |
This resource explores different types or mineral deposits found in the Earth and focuses in particular on copper deposits called porphyry. A presentation looks at how these deposits are formed and mined. It then goes on to explain how geologists locate porphyry deposits using mapping, fieldwork, sampling,...