Ch. 5 Lesson 4

Discover the fascinating world of fossils! Learn to identify trace, cast, and mold fossils.

Match each term to its definition. sediments bits of rock, sand, shell,and other material that harden into rocks fossil the remains or mark of an animal or plant that lived long ago extinct no longer exists Why are fossils important? They help scientists learn about living animals. They help scientists learn about extinct animals. They are not important. Explain why fossils that form in sediments usually only include the hard parts of animals. You must write using a complete sentence. What type of fossil is this: a space in rock in the shape of a living thing is called a ? trace fossil cast fossil mold fossil body fossil What type of fossil is this: when minerals harden into the shape of the mold is called a ? trace fossil cast fossil mold fossil body fossil What type of fossil is this: when an insect's body is covered entirely in tree sap? trace fossil cast fossil mold fossil body fossil What type of fossil is this: one that gives clues about a living thing's activities ? trace fossil cast fossil mold fossil body fossil What kind of fossil preserves the hard and soft parts of an animal? a trace fossil a cast fossil a fossil from a tar pit a fossil in amber Which is not a trace fossil? a preserved skull a preseved track a preserved nest a preserved eggshell Suppose you are a scientist studying saber-toothed cats. Would you be more excited to find cast fossils or fossils from a tar pit? Explain your answer. You must write using a complete sentence.