rocks and fossils Name: Date: Fossil Record 1. Fossil Record 2. In a section of the Grand Canyon, scientists have found the fossil remains of several di erent groups of organisms. The diagram below represents the number and age of the fossils the scientists found. The width of each shaded area in the diagram below indicates the relative number of fossils found. In a section of the Grand Canyon, scientists have found the fossil remains of several di erent groups of organisms. The diagram below represents the number and age of the fossils the scientists found. The width of each shaded area in the diagram below indicates the relative number of fossils found. Which of the following statements is supported by the fossil record? Which of the following is usually most helpful in determining the age of these fossils? A. Group C is now extinct. A. The size of the fossils B. Group D has been in existence the longest. B. The color of the fossils C. Group A is the most recent organism to come into existence. C. The amount of surface area of the rock layer in which the fossils are found D. Group B was the most numerous organism 10 million years ago. D. The depth of the rock layer in which the fossils are found page 1 3. Use the diagram below to answer the following question. 5. A researcher found shark fossils on top of a mountain. This evidence suggests which of the following about this region? A. It was once below a waterfall. B. It was once part of a riverbed. C. It was once covered by an ocean. D. It was once near a freshwater lake. In which stage of the rock cycle shown above would you predict the formation of fossils? 4. A. stage L B. stage M C. stage N D. stage P 6. The drawings below show some trilobite and crinoid fossils. Anne and her father nd a 30-million-year-old tropical plant fossil in Louisiana. Which question does the fossil help them answer? A. Were there mountains in Louisiana 30 million years ago? B. What was the climate like in Louisiana 30 million years ago? Which of the following is the most reasonable conclusion when fossils of these two di erent types of organisms are found in the same layers of rock? C. Were there earthquakes in Louisiana 30 million years ago? A. Crinoids were prey for trilobites. B. Crinoids were ancestors of trilobites. C. Crinoids and trilobites had similar behaviors. D. What kind of animals lived in Louisiana 30 million years ago? D. Crinoids and trilobites lived at the same time. page 2 rocks and fossils 7. In 2006, scientists discovered fossilized skeletons of an animal with several interesting features. Fossil evidence indicated that the animal not only had scales, ns, and gills, but also had lungs, a full set of ribs, and limb bones arranged to support the animal's weight. The illustration below shows what the animal, called Tiktaalik, probably looked like based on the fossil evidence. 8. Fossils are the evidence of organisms that lived long ago. Which of these animals would most likely form a fossil? A. Fish B. Spider C. Which of the following statements best explains why the Tiktaalik fossils are an important piece of evidence for evolution? A. They include skeletons of both males and females. B. They are complete skeletons of a carnivorous animal. C. They allow scientists to estimate the animal's lifespan. D. They show a transitional form between and land-dwelling vertebrates. D. Earthworm Sea Nettle sh 9. Fossils of clam shells were found in the Appalachian Mountains. Which of these statements best explains why the clam shells were found in the Appalachian Mountains? A. The mountain range was once under water. B. Birds ying overhead dropped the clam shells. C. Animals released the clam shells in their waste. D. The clams lived on land before moving to water. page 3 rocks and fossils 10. Which fossil shown below is that of an organism that most likely lived on land? 11. A. B. 12. Paleontologists study fossils to obtain information about organisms. In which of these types of rocks would a paleontologist most likely nd fossils? A. Igneous B. Synthetic C. Sedimentary D. Metamorphic The picture below shows a model of the rock cycle. C. During which part of the rock cycle does water break rocks apart? A. D. 13. part 1 B. part 2 C. part 3 D. part 4 Shale is a sedimentary rock that can be metamorphosed into slate by A. cementation. B. chemical weathering. C. sedimentation. D. increased pressure. page 4 rocks and fossils 14. Relative cooling rates of igneous intrusive rocks can be estimated by comparing rocks' A. crystal sizes. B. C. density. D. chemical reactivity. 16. The diagram below shows some of the layers of rocks found in the Grand Canyon. Scientists nd these layers of rock useful for studying fossils. composition. What type of rock is shown labeled in these layers? 15. Ricardo has an igneous rock in his rock collection. Where did this rock most likely form? A. in a volcano B. on a forest oor C. on a coral reef A. extrusive B. igneous C. metamorphic D. sedimentary D. at the bottom of a river 17. page 5 Which of the following can cause erosion? A. falling leaves B. owing water C. growing grass D. rising temperatures rocks and fossils 18. Which of the following is a slow process that changes Earth's surface? A. C. ooding wind erosion B. 20. The pictures below show the same area before and after an event occurred. earthquake D. volcanic eruption 19. Which of the following events most likely caused the change in this area? Which process is most responsible for the formation of the Grand Canyon? A. scouring by continental glaciers B. erosion by wind and water C. eruptions by explosive volcanoes A. a ood B. a hurricane C. a volcanic eruption D. a strong earthquake D. cracking of Earth's crust by earthquakes page 6 rocks and fossils 21. The Appalachian Mountains, which extend from Canada to Alabama, were much taller in the past than they are today. Which of the following two processes are most responsible for the decrease in the height of the Appalachian Mountains? 23. Use the information below to answer the following question(s) Students studied the natural resources of Maryland. The students recorded their ndings in the data table below. A. weathering and erosion NATURAL RESOURCES OF MARYLAND B. sedimentation and ooding Resource C. volcanic eruptions and landslides Plants Coal D. tectonic collisions and earthquakes Type Use Renewable Nonrenewable Provide food Produce electricity Trees and bushes are renewable natural resources. What is a positive result of planting trees and bushes along streams and rivers? 22. A. Trees and bushes increase sh habitats. B. Trees and bushes reduce erosion of soil. C. Trees and bushes increase water temperatures. D. Trees and bushes reduce the population of rodents. Erosion, transportation, and deposition change the surface of Earth. 24. How does lava a ect the surface of Earth? A. Lava forms new land. B. Lava helps plants grow. C. Lava provides more food to animals. D. Lava makes temperatures cooler on Earth. Which number in the diagram represents a landform made by the deposition of eroded sediment? A. 1 B. 2 C. 3 25. D. 4 page 7 Which of these most likely forms when large sections of Earth's crust collide with each other? A. Reefs B. Gullies C. Craters D. Mountains rocks and fossils
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