Everyone's been making math and geography tests. Now, I'm gonna give you a science test. Put your answers in the comment section below. The winner gets a user gift. I had to do the same worksheet in Science, and got 100% on it, so I know the answers. The answers will be revealed when I get at least 8 guesses. A user can only guess up to three times a day.

What type of rock is it? How is that type of rock formed? How much is it worth?
Coal Sedimentary Rock Pieces of sediment get push and hardened together. $71.15
Kimberlite Igneous Rock Cooling of magma. Depends on whether it contains diamonds.
Marble Metamorphic Rock A rock going through a change because of heat and/or pressure. $9 - $20

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