Quizizz - Earth History

2/20/24, 11:15 AM Earth History | Quizizz https://quizizz.com/en-us/print/61b26644c0480a001d5ba25e/64525f00439d78b83495e65b 1/5 Worksheets Earth History Total questions: 15 Worksheet time: 22mins Name Class Date 1. Which is the most recent era of time- the one that we are currently in? a) Mesozoic b) Cenozoic c) Precambrian d) Paleozoic 2. The time span that lasted the longest was the... a) Paleozoic b) Cenozoic c) Mesozoic d) Precambrian 3. How old do Paleontologists believe the Earth is? a) 4.6 million years old b) 4.6 billion years old c) 2015 years old d) 3.6 billion years old 4. Paleozoic, Mesozoic & Cenozoic are all a) Epochs b) Eons c) Eras d) Periods 5. Which best describes a fossil that helps determine the relative age of a rock layer? a) trace fossil b) radioactive fossil c) index fossil d) unconformity fossil 6. Which process would be most effective in determining the age of fossils embedded in rock? a) use of core sampling b) relative dating c) absolute dating d) use of index fossils

2/20/24, 11:15 AM Earth History | Quizizz https://quizizz.com/en-us/print/61b26644c0480a001d5ba25e/64525f00439d78b83495e65b 2/5 7. By which method have scientists determined that the Earth is about 4.5 billion years old? a) relative dating b) law of superposition c) radioactive dating d) plate tectonics 8. Which characteristic of carbon-14 dating helps scientists determine the approximate time a species became extinct? a) Carbon-14 increases at a constant rate over time b) Carbon-14 decreases at a constant rate over time c) Carbon-14 is not present in more recent fossils d) Carbon-14 can only be found in fossils of a certain period 9. What role do faults play in the Law of Superposition? a) Faults create new types of rock. b) Faults are the same age as the layers they cut through. c) Faults are younger than the layers they cut through. 10. Which statement best describes the Law of Superposition? a) Rocks that form near volcanoes are older than surrounding rock. b) Each sedimentary layer of rock represents 1,000 years of Earth's age, much like the rings of a tree. c) In undisturbed layers of sedimentary rocks, the upper rock layers are older than the lower rock layers. d) In undisturbed layers of sedimentary rock, the lowest layers contain the older rocks. 11. The process where scientists guess an approximated age of a fossil or rock by comparing them to other fossils and rocks a) Absolute Age b) Uniformitarianism c) Geography d) Relative Age 12. Law that states that anything cutting across a rock layer is younger than the rock layer that it is in a) Law of Superposition b) Law of Horizontality c) Law of Inclusion d) Law of Cross Cutting