Dinosaur - A big wild animal​ that lived a long time ago., Skull - The bones in our head​ of a person or an animal., Ravine - A small deep, ​narrow valley. It is usually created by flowing water., Examine - To look carefully at someone or something., Discover - To find or learn ​something for the first time., Excavate - ​To dig the ground to look for old objects and buildings that have been burried for a long time., Layers - Something flat that lies on another or that's between other things. , Paleontologist - A person who studies very old​ dead animals and plants as fossils., Ash - ​The gray powder that is left after something has completely burned., Sedimentary rock - A type of rock formed by sand, stones, mud etc... Which settles at the bottom of the lake or other bodies of water., Pastime - ​Something you like doing when your not working.,

Unit 4: G4

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