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Fossils

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  • Which type of fossil would look like an actual body part of a once-living thing?
    a mineral
    a trace
    a footprint
    a cast
  • What replaces the wood of a once-living tree to form petrified wood?
    a cast
    amber
    a mold
    minerals
  • Which is an imprint fossil?
    Petrified wood
    an animal track
    a cast
    bone
  • How are an elephant and a mammoth alike?
    both are extinct
    both have tusks
    both live in a warm climate
    both have thick, shaggy fur
  • why are there many fossil imprints of ferns?
    Once, most plants on Earth were ferns.
    Ferns have changed little over time.
    Ferns were larger than other ancient plants.
    Fern parts are hard like bone.
  • If scientists found this fossil, what could they infer?
    that water once covered the area
    what fish were like today
    that this fish lacked oxygen
    what kind of animal ate this fish
  • Why are there more animal fossils than plant fossils?
    Animals eat plants.
    There were more ancient animals than ancient plants.
    Plants have softer body parts than animals.
    Plants are smaller than animals.
  • Which animal is extinct?
    saber-toothed cat
    elephant
    camel
    rhinoceros
  • Which of these must happen first for a fossil to form?
    A plant or animal is covered by sediment.
    A plant of animal is eaten.
    Sediments are pressed together and hardened.
    Sediments fill a mold and form a cast.
  • A fossil animal has a mouth full of sharp, pointed teeth. What can you infer about the animal?
    The animal did not live on land.
    The animal ate meat.
    The animal is closely related to a shark.
    The animal ate fruits and vegetables.
  • The hardened remains of living thing that died long ago.
    Fossil
    Extinct
  • Which term describes this fossil?
    cast
    bone
    amber
    mold
  • In which type of rock are most fossils found?
    igneous
    metamorphic
    volcanic
    sedimentary
  • Which sentence is TRUE?
    Some living things have not changed in millions of years.
    Fossils show that camels have not changed.
    Fossils show that the coelacanth fish has changed.
    All once-living organisms left behind fossils.
  • A group of living things that is no longer living.
    Extinct
    Fossil
  • Why don't we know what many ancient plants looked like?
    They rotted away.
    Minerals destroyed them.
    Animals ate them all.
    They were trapped in tar.
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