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Science Nine Weeks
Question | Answer |
---|---|
Mineral | An object that is a solid form in nature and has never been alive. |
rock | A natural form solid made of one or more minerals. |
Mohs Scale | Used to identify the hardness of a mineral |
Streak | The color left behind a mineral when it is rubbed against a rough white tile |
igneous rock | rock that was once melted and then cooled and hardened |
sedimentary rock | rock formed material that has settled into layers |
metamorphic rock | rock that has been changed through heat and pressure. |
loam | best soil for farming |
weathering | breaks down rocks into smaller pieces |
erosion | the process that moves pieces of rock and soil |
fossil | the hardened remains of a living thing that lived long ago |
extinct | a group of living things that are no longer living |
petrified wood | minerals that replace the wood of a once living tree |
mold | empty space shaped like a plant or animal |
cast | looks just like the actual body part of a living thing |
sedimentary rock | most fossils are found in |
saber tooth cat | extinct |
trace fossil | an animal track is an example of |
sand, silt clay | soil containing the largest grains to the smallest grains |