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paleontologist A scientist that studies fossils. imprint A living thing that pressed into materials long ago formed a shallow print called an_____________________ _______________ can be found in amber or sedimentary rocks. fossils amber liquid tree sap that hardens and can trap insects to create a fossil. fossil fuels People depend on ___________ made from fossil plants for energy. mold A ___________ is an empty space in a rock that has the shape of the plant or animal that is not there anymore. swamps Millions of years ago much of the earth was covered by _____________. cast When minerals seep into an empty space left in rock to form a __________ that is the shape of the organism that used to be there. Fossils are important becauseā¦. they tell us about the history of life on Earth. extinct No longer living