9.7 Flashcards

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1
Q

Stone Age

A

Starting 2 million years ago when early humans made tools out of stone

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2
Q

Alloy

A

A combination of metal with a non metal or another metal

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3
Q

Flint

A

A grained sedimentary rock which leaves a sharp edge to the rock when broken

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4
Q

Percussion flaking

A

A procedure in which tool stones e.g flint are hit with harder stones example quartzite to make large flakes to use them as small tools

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