Rocks, pots and fossils!
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What is this rock with Strange markings ?
Started by araghu |
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Help identify what's inside this rock
Started by Skep |
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Were fires started with flints?
Started by colarris |
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What is the 26 second pulse of the Earth ?
Started by neilep |
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What is this crystal-rich rock?
Started by ninamuybueno0 |
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Bones of animals in the ground
Started by smartasafruit |
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What causes the water in the oceans to be salty?
Started by Laurence |
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When did human language first evolve?
Started by thedoc |
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Can volcanic glass start a fire?
Started by Mearns Learner 1 |
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Can we predict the reversal of earth's magnetic field?
Started by Tad Davison |
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Does fracking cause earthquakes?
Started by annie123 |
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What makes a rock look glassy?
Started by iEvolve |
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Is this pyrite rock or something else?
Started by ElyB |
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