Term
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Definition
| THE PRESERVED REMAINS OR TRACES OF AN ORGANISM |
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Term
| HOW DO MOST FOSSILS FORM? |
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Definition
| LIVING THINGS DIE AND THEIR REMAINS ARE BURIED BY SEDIMENTS |
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Term
| WHAT DOES THE FOSSIL RECORD SHOW? |
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Definition
| THAT LIFE ON EARTH HAS CHANGED OVER TIME |
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Term
| PALEONTOLOGISTS HAVE FOUND THAT OLDER ROCKS CONTAIN FOSSILS OF.... |
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Definition
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Term
| THE PROCESS BY WHICH ALL THE DIFFERENT KINDS OF LIVING THINGS HAVE CHANGED OVER LONG PERIODS OF TIME IS CALLED ____. |
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Definition
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Term
| A TYPE OF ORGANISM THAT NO LONGER EXISTS ON EARTH IS SAID TO BE ____. |
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Definition
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Term
| A FOSSIL FORMED WHEN MINERALS REPLACE ALL OR PART OF AN ORGANISM IS CALLED A ____. |
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Definition
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Term
| WHICH TYPE OF FOSSIL CAN PROVIDE CLUES ABOUT THE ACTIVITIES OF ANCIENT ORGANISMS? |
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Definition
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Term
| IN WHICH TYPE OF FOSSIL MIGHT YOU FIND THE REMAINS OF AN INSECT PRESERVED WITH LITTLE OR NO CHANGE? |
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Definition
| PRESERVED FOSSIL (LIKE A FOSSIL IN AMBER, ICE OR TAR) |
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Term
| A ROCK'S AGE WHEN COMPARED TO THE AGE OF OTHER ROCKS AROUND IT IS CALLED THE ROCK'S _______ AGE. |
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Definition
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Term
| WHAT DOES THE LAW OF SUPERPOSITION STATE? |
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Definition
| IN HORIZONTAL LAYERS OF SEDIMENTARY ROCK, EACH LAYER IS OLDER THAN THE LAYER ABOVE IT AND YOUNGER THAN THE LAYER BELOW IT. |
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Term
| A PLACE WHERE AN OLD ERODED SURFACE IS IN CONTACT WITH A NEWER ROCK LAYER IS CALLED A(N) |
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Definition
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Term
| THE FOSSILS OF ORGANISMS THAT WERE WIDELY DISTRIBUTED BUT ONLY LIVED DURING A SHORT PERIOD OF TIME ARE CALLED ______ _____. |
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Definition
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Term
| WHY ARE INDEX FOSSILS USEFUL TO GEOLOGISTS? |
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Definition
| THEY TELL THE RELATIVE AGE OF THE ROCK IN WHICH THEY OCCUR. |
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Term
| WHAT IS THE AGE OF AN INTRUSION OF IGNEOUS ROCK IN RELATION TO THE SEDIMENTARY ROCK LAYERS THROUGH WHICH IT PASSES? |
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Definition
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Term
| TRUE OR FALSE: RADIOACTIVE DECAY OCCURS WHEN ATOMS OF AN UNSTABLE ELEMENT BREAK DOWN TO FORM ATOMS OF ANOTHER ELEMENT. |
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Definition
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Term
| THE TIME IT TAKES FOR HALF OF THE RADIOACTIVE ATOMS IN A SAMPLE OF A RADIOACTIVE ELEMENT TO DECAY IS CALLED THE ELEMENT'S _________. |
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Definition
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Term
| TRUE OR FALSE: RADIOACTIVE DATING ENABLES GEOLOGISTS TO DETERMINE THE RELATIVE AGE OF ROCKS. |
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Definition
| FALSE - IT HELPS DETERMINE THE ABSOLUTE AGES OF ROCKS. |
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Term
| RADIOACTIVE DATING WORKS BEST WITH WHICH TYPE OF ROCKS? |
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Definition
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Term
| THE FOSSILS OF ANIMALS FOUND IN THE LA BREA TAR PITS ARE EXAMPLES OF WHAT KIND OF FOSSILS? |
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Definition
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Term
| WHY DO GEOLOGISTS USE THE GEOLOGIC TIME SCALE TO MEASURE GEOLOGIC TIME, INSTEAD OF YEARS OR CENTURIES? |
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Definition
| BECAUSE THE TIME SPAN OF EARTH'S HISTORY IS SO GREAT |
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Term
| TRUE OR FALSE: THE GEOLOGIC TIME SCALE IS A RECORD OFTHE LIFE FORMS AND GEOLOGIC EVENTS IN EARTH'S HISTORY. |
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Definition
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Term
| THE PALEOZOIC, MESOZOIC, AND CENOZOIC ARE DIVISIONS IN THE GEOLOGIC TIME SCALE CALLED ______. |
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Definition
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Term
| THE MESOZOIC ERA IS DIVIDED INTO THE TRIASSIC, THE JURASSIC, AND THE CRETACEOUS. THESE DIVISIONS ON THE GEOLOGIC TIME SCALE ARE CALLED ______. |
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Definition
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Term
| TRUE OR FALSE: PRECAMBRIAN TIME, WHICH INCLUDES MOST OF EARTH'S HISTORY, BEGAN WITH EARTH FORMING FROM A MASS OF DUST AND GAS. |
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Definition
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Term
| ABOUT 250 MILLION YEARS AGO, EARTH'S CONTINENTS MOVED TOGETHER TO FORM THE SUPERCONTINENT CALLED _____. |
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Definition
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Term
| WHAT HAPPENED ABOUT 2.5 BILLION YEARS AGO WHEN SOME ORGANISMS BEGAN USING PHOTOSYNTHESIS TO MAKE FOOD? |
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Definition
| THE AMOUNT OF OXYGEN IN THE ATMOSPHERE INCREASED |
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Term
| DURING THE CAMBRIAN EXPLOSION THAT BEGAN THE PALEOZOIC ERA, THE MANY NEW FORMS OF LIFE THAT EVOLVED WERE ____. |
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Definition
| INVERTEBRATES THAT LIVED IN THE SEA |
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Term
| DURING THE DEVONIAN PERIOD, ANIMALS THA COULD LIVE ON LAND BEGAN TO EVOLVE. THE ANIMALS STILL SPENT PART OF THEIR LIVES IN THE WATER. WHAT WERE THESE ANIMALS CALLED? |
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Definition
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Term
| WHAT DO MOST SCIENTISTS THINK CAUSED THE MASS EXTINCTION OF DINOSAURS AND OTHER ORGANISMS AT THE END OF THE CRETACEOUS PERIOD? |
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Definition
| AN OBJECT FROM SPACE HIT EARTH |
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Term
| THE CENOZOIC ERA IS OFTEN CALLED THE AGE OF ______. |
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Definition
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Term
| FOOTPRINTS AND TRAILS ARE CALLED ______ FOSSILS. |
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Definition
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Term
| TRUE OR FALSE: GENERALLY, ONLY THE SOFT PARTS OF ORGANISMS BECOME FOSSILS. |
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Definition
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Term
| TRUE OR FALSE: AT THE BEGINNING OF THE PALEOZOIC ERA, A GREAT NUMBER OF DIFFERENT TYPES OF ORGANISMS EVOLVED IN AN EVENT CALLED THE CAMBRIAN EXPLOSION. |
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Definition
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Term
| TRUE OR FALSE: ROCK LAYERS ARE ALWAYS YOUNGER THAN THE FAULTS THAT CUT ACROSS THEM. |
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Definition
| FALSE, THE FAULT IS YOUNGER |
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Term
| TRUE OR FALSE: GEOLOGISTS DIVIDE EARTH'S LONG HISTORY INTO SMALLER UNITS THAT MAKE UP THE GEOLOGIC TIME SCALE. |
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Definition
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Term
| THE ERA BEFORE THE MESOZOIC ERA IS THE _______ ERA. |
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Definition
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Term
| TRUE OR FALSE: LIFE ON EARTH FIRST APPEARED DURING PRECAMBRIAN TIME. |
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Definition
| TRUE (SIMPLE, ONE CELLED ORGANISMS) |
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Term
| WHAT DO PALEONTOLOGISTS STUDY? |
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Definition
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Term
| PLANT LEAVES MAY FORM A FOSSIL CALLED A _____, A THIN LAYER OF CARBON ON ROCK. |
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Definition
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Term
| CERTAIN TRILOBITES ARE USED AS ____ FOSSILS BECAUSE THEY LIVED IN MANY DIFFERENT AREAS BUT ONLY FOR A BRIEF TIME. |
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Definition
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Term
| AN ____ IS A GAP IN THE GEOLOGIC RECORD WHERE SOME ROCK LAYERS HAVE BEEN LOST BECAUSE OF EROSION. |
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Definition
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Term
| ON THE GEOLOGIC TIME SCALE, PERIODS ARE DIVIDED INTO ______. |
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Definition
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Term
| THE PRESENT DAY IS PART OF THE ____ ERA. |
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Definition
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Term
| JAWLESS FISH WERE EARTH'S FIRST _____, OR ANIMALS WITH BACKBONES. |
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Definition
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Term
| TRUE OR FALSE: DURING THE QUATERNARY PERIOD, A SERIES OF ICE AGES OCCURRED WHEN EARTH'S CLIMATE COOLED. |
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Definition
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Term
| THE MASS EXTINCTION AT THE END OF THE PALEOZOIC ERA MAY HAVE OCCURRED BECAUSE EARTH'S _____ MOVED TOGETHER INTO ONE LARGE LANDMASS, CHANGING EARTH'S CLIMATE. |
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Definition
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Term
| DURING THE MESOZOIC ERA, ____ EVOLVED FROM AMPHIBIANS TO LIVE ON LAND. |
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Definition
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Term
| THE EXTINCTION OF THE DINOSAURS GAVE WARM-BLOODED VERTEBRATES CALLED ____ A CHANCE TO BECOME ABUNDANT. |
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Definition
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Term
| A HOLLOW AREA IN SEDIMENT THAT HAS THE SHAPE OF AN ORGANISM THAT WAS ONCE BURIED IN SEDIMENT. |
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Definition
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Term
| A COPY OF THE ORGANISM WHICH FORMS IF WATER DEPOSITS MINERALS AND SEDIMENTS INTO A MOLD. |
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Definition
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Term
| EVIDENCE OF AN ORGANISM'S ACTIVITIES, SUCH AS THE TRAIL LEFT BY ITS FOOTPRINTS OR THE SHAPE OF ITS BURROW. |
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Definition
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Definition
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