Chapter 2: Dinosaurs

Any part or trace of a living organism that is naturally preserved after it dies is....?

• a whatchamacallit

• a fossil

• a rock

In which type of rock are most fossils found?

• igneous

• sedimentary

• metamorphic

How are fossils formed?

• when organisms, or living things, are buried quickly beneath sediment

• over millions of years

What parts of an organism usually decompose first?

• the harder parts, like bone

• the softer parts

What term means to "rot away" ?

• break down

• decompose

T/F: The Bible and the Flood (during Noah's time) tell us that floodwaters an erosion would have created large amounts of sediment in a short time- the sediment probably buried all the creatures that were not in the ark.

• TRUE

• FALSE

What kinds of animal parts are usually seen preserved as fossils?

• bones

• teeth

• claws

• shells

T/F: Petrified fossils are the SAME as other fossils in that, as an organism decays, it is slowly replaced by minerals that harden into rock.

• TRUE

• FALSE, DIFFERENT

An organism is pressed into rock and leaves an imprint

• mold

• cast

• trace fossil

Sediment fills in a mold, creating a copy of the organism's shape as the sediment hardens

• mold

• cast

• trace fossil