Seventh Grade History of the Earth and Life Forms Assessment

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1 Seventh Grade History of the Earth and Life Forms Assessment 1a. Fossils can be thought of as a record of the: a. past b. present c. future 1b. What do we look at when we want to see a record of past life forms? 1c. What kinds of things can fossils tell us? 2a. Fossils are sometimes formed after organisms are: a. buried b. burned 2b. Name one way that fossils are formed: 2c. Give the details of one of the ways fossils can be formed. 3a. Which one of these is a type of fossil? a. bones b. cast 3b. Name two types of fossils: c. Name one type of fossil and tell how it is formed. 4a. According to geologic evidence and radioactive dating, the age of the Earth is: a. 4.6 billion years b. 400 billion years Seventh Grade, History of the Earth and Life Forms Colorado Core Knowledge Assessments 1

2 4b. According to geologic evidence and radioactive dating, the age of the Earth is: 4.6 years. 4c. How old is the earth according to geologic evidence and radioactive dating? 5a. How far back does the geologic evidence of life on Earth go? a. 10,000 years b. 3 billion years 5b. Geologic and radiocarbon dating say that life has existed on Earth for years. 5c. Discuss the age of the Earth as determined by radiocarbon and geologic evidence and explain the procedure for reaching this conclusion using this evidence. 6a. The theory of plate explains why the same fossils appear on different continents far from each other. a. subduction b. tectonics 6b. Which theory explains why the same fossils appear on several different continents far away from each other? 6c. Explain how the theory of plate tectonics explains why the same fossils are on several different continents. 7a. Geologic time has been divided up into eras. 7b. Which of these eras is NOT one of the four main divisions of Geologic time? a. Paleozoic Era b. Jurassic Era c. Mesozoic Era d. Cenozoic Era Seventh Grade, History of the Earth and Life Forms Colorado Core Knowledge Assessments 2

3 7c. Put the four divisions of Geologic time in order from oldest to youngest: Mesozoic Era, Paleozoic Era, Cenozoic Era, Precambrian Era. 8a. Choose which of these organisms would have been alive during the Precambrian Era. a. Jellyfish b. Trees c. Dinosaurs d. Humans 8b. Name an organism living during the Precambrian Era. 8c. Name one organism from the early Precambrian Era, and one from the late Precambrian Era. Early: Late: 9a. Which Geologic era is the longest? a. Cambrian b. Precambrian 9b. Name the longest of the Geologic eras, a time during which most of the earth s crust solidified: 9c. What was happening physically to the earth itself during the longest Geologic Era, the Precambrian? 10a. A very important type of organism appeared during the Paleozoic Era. What was it? a. invertebrates b. vertebrates 10b. What major kind of organism, which is the basis for large land animals, first appeared during the Paleozoic Era? Seventh Grade, History of the Earth and Life Forms Colorado Core Knowledge Assessments 3

4 10c. What is the main and most important development in the animal kingdom during the Paleozoic Era? What major type of organism did it later make possible? 11a. What eastern U.S. mountain chain was formed during the Paleozoic Era? a. the Alps b. the Rockies c. the Sierra Nevadas d. the Appalachians 11b. The Paleozoic era was a very intense period of geological change for North America. What Eastern U.S. mountain chain was formed during this Era? 11c. During the Paleozoic Era, many drastic geologic changes occurred in North America. List two of these geological events. 12a. The Mesozoic Era is known as the Age of. a. Reptiles b. Blue-Green Algae 12b. What is the nickname given to the Mesozoic Era, mainly because of the large animals common during this time? 12c. Which organisms are most famously present during the Mesozoic Era? 13a. What western U.S. mountain chain was formed at the end of the Mesozoic Era? a. the Rocky Mountains b. the Himalayan Mountains 13b. Which western U.S. mountain chain, the youngest of the three main mountain chains in the U.S., was formed during the end of the Mesozoic Era? 13c. What major geologic event happened in the U.S. at the very end of the Mesozoic Era, during the Cretaceous Period? 14a. Which Era do we live in now? a. Cambrian Era b. Cenozoic Era Seventh Grade, History of the Earth and Life Forms Colorado Core Knowledge Assessments 4

5 14b. Which Era saw the beginning of human life on Earth? a. Paleozoic b. Cenozoic c. Cambrian d. Mesozoic 14c. List three different species that became prominent during the Cenozoic Era, and how they relate to each other in the timeline. 15a. During the Cenozoic Era, glaciers covered much of the Northern Hemisphere several times. These time periods were called ages. 15b. During the Cenozoic Era, glaciers covered much of North America several times. These periods were called. Also during this time, erupted in the Northwestern U.S., covering most of the area with lava. 15c. List two different geological and/or climatological events that happened during the Cenozoic Era The following Colorado Model Content Standards are covered in this assessment by the questions indicated: Questions 1a, 1b, 1c: Standard 2. Physical Science: Students know and understand common properties, forms, and changes in matter and energy. Questions 1a, 1b, 1c, 2a, 2b, 2c, 5a, 5b, 5c, 8a, 8b, 8c, 9a, 9b, 9c, 10b, 10c: Standard 3. Life Science: Students know and understand the characteristics and structure of living things, the processes of life, and how living things interact with each other and their environment. Questions 4a, 4b, 4c, 5a, 5b, 5c, 6a, 6b, 6c, 7a, 7b, 7c: Standard 4. Earth and Space Science: Students know and understand the processes and interactions of Earth s systems and the structure and dynamics of Earth and other objects in space. Questions 4a, 4b, 4c, 5a, 5b, 5c: Standard 5. Students know and understand interrelationships among science, technology, and human activity and how they can affect the world. Seventh Grade, History of the Earth and Life Forms Colorado Core Knowledge Assessments 5

6 Questions 5a, 5b, 5c, 6a, 6b, 6c: Standard 6. Students understand that science involves a particular way of knowing and understand common connections among scientific disciplines. Seventh Grade, History of the Earth and Life Forms Colorado Core Knowledge Assessments 6

7 Answer Key 1a. a. past 1b. fossils 1c. Acceptable answers could include: -any of the following, plus others: which organisms existed at the same time, the order of development of different organisms, etc. 2a. a. buried 2b. Acceptable answers could include: -an organism is buried, -an organism leaves tracks in mud, etc. 2c. Acceptable answers could include: -should tell a plausible way that a mold, cast, trace or true-form fossil is made 3a. B 3b. Acceptable answers could include any two of the following: -mold -cast -trace -true-form 3c. Acceptable answers could include: -An organism is buried under layers of sediments. If the organism s remains are dissolved and washed away leaving an empty space, a mold fossil forms. If the mold is filled in with another substance, such as minerals, a cast fossil forms. If the organism does not dissolve, and the remains stay buried, it is a true-form fossil. If an organisms tracks, trails or burrows which are preserved in sediment, it is called a trace fossil. 4a. a. 4.6 billion years 4b. Billion 4c. 4.6 Billion years 5a. b. 3 billion years 5b. 3 billion 5c. Acceptable answers could include: -Age of the earth: 3 billion years -Geologic evidence: Layers of sediment add up to 3 billion years worth of buildup. Radiocarbon dating of rocks and fossils shows that the leftover Carbon 14 is in keeping with theoretical levels for 3 billion years. -Other explanations are possible. 6a. b. tectonics 6b. Plate Tectonics or Continental Drift Seventh Grade, History of the Earth and Life Forms Colorado Core Knowledge Assessments 7

8 6c. Acceptable answers could include: -Plate Tectonics (or Continental Drift) says that all the continents were once joined, in a super continent named Pangaea. At this time, many organisms were dispersed across the entire super continent. Later, the super continent broke up into smaller continents, which developed separate types of organisms, so leaving different fossils in different places. 7a. Four 7b. b. Jurassic Era 7c. Precambrian Era, Paleozoic Era, Mesozoic Era, Cenozoic Era 8a. a. Jellyfish 8b. Acceptable answers could include: -bacteria -blue-green algae -jellyfish -other early invertebrates 8c. Acceptable answers could include: -Early: any of bacteria, blue-green algae, etc. -Late: invertebrates, like jellyfish, etc. 9a. b. Precambrian 9b. Precambrian 9c. Acceptable answers could include: -During the Precambrian, the Earth s crust solidified, the tectonic plates took shape, and many cycles of mountain building and wearing away happened. 10a. b. vertebrates 10b. Vertebrates 10c. Acceptable answers could include: -Vertebrates, animals with spines, appeared and developed. Later this would make dinosaurs and large reptiles possible. 11a. d. the Appalachians 11b. Appalachians 11c. Acceptable answers could include: -formation of the Appalachian mountains -formation of the Appalachian and Cordilleran geosynclines -repeated flooding of the great planes to form shallow heavily populated seas 12a. a. Reptiles 12b. Age of Reptiles 12c. Dinosaurs 13a. a. the Rocky Mountains 13b. Rocky Mountains (or Rockies) 13c. Formation of the Rocky Mountains (or Rockies) Seventh Grade, History of the Earth and Life Forms Colorado Core Knowledge Assessments 8

9 14a. b. Cenozoic Era 14b. b. Cenozoic 14c. Acceptable answers could include many different explanations: -May include mammals, mammoths, birds, humans, flowering plants, grasses.. 15a. Ice 15b. ice age, volcanoes 15c. Acceptable answers could include any of the following two answers: -formation of the Alps, Himalayas, Andes -volcanoes erupt and cover NW U.S. with lava, -Ice ages cover most of northern hemisphere with glaciers Seventh Grade, History of the Earth and Life Forms Colorado Core Knowledge Assessments 9

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