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- 1. Multiple ChoiceThe Law of Superposition helps scientists to determine what?The absolute age of rock layersThe age of fossilsThe relative age of rock layersthe super powers of rocks
- 2. Multiple Choice
According to the law of superposition, the oldest fossils are foundAt the top of the rock layersNear the bottom of the rock layersIn the middle of the rock layersSomewhat near the surface - 3. Multiple ChoiceThis rock was formed by smaller pieces of rock that settled at the bottom of a lake millions of years ago. What type of rock is this?SedimentaryIgneousMetamorphic
- 4. Multiple ChoiceMost elements DO NOT change.TrueFalse
- 5. Multiple ChoiceSome ELEMENTS can decay over time.TrueFalse
- 6. Multiple ChoiceThe rate of decay of any radioactive element CHANGES FREQUENTLY.TrueFalse
- 7. Multiple ChoiceGeologists use radioactive dating to determine THE ABSOLUTE AGE OF ROCKS.TrueFalse
- 8. Multiple ChoiceAll plants and ANIMALS contain carbon.TrueFalse
- 9. Multiple ChoiceAn element that has broken down and released particles and energy is said to be _______________.radioactivesubatomic
- 10. Multiple Choice_______________is the method of determining the absolute ages of rocks.radioactive datingcarbon-14 dating
- 11. Multiple Choice__________________is the time it takes for half of the radioactive atoms in an element to decay.dating rangehalf life
- 12. Multiple ChoiceDuring ______________, the atoms of one element break down to form atoms of another element.radioactive decaypotassium decay
- 13. Multiple ChoiceWhat is the relative age of a rock?The age determined by the things around it.The age of an igneous rock.The age determined by radioactive dating.The time it takes for 1/2 of the radioactive atoms to decay in an element.
- 14. Multiple ChoiceWhat is the absolute age of a rock?The age determined by the things around it.The age of an igneous rock.The age determined by radioactive dating.The time it takes for 1/2 of the radioactive atoms to decay in an element.
- 15. Multiple ChoiceFossils are usually found inigneous rockextrusionsintrusionssedimentary rock
- 16. Multiple ChoiceIf the half-life of a radioactive group of atoms is 100 years, then how old is the rock if there have been two half-lives?25 years200 years400 years800 years
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