Use the dot chart: In the “events” column, each event has a letter or number code that can be found in the chart. Fill in the following chart: Event #/Letter Era Period (System) Epoch (Series) Amphibians A Paleozoic Devonian Bacteria 4 Precambrian (Archean Era) Fish 7 Paleozoic Oridvician Mammals G Mesozoic Triassic Monkeys V Cenozoic Tertiary Eocene Cells w/nucleus 5 Precambrain (Proterozoic Era) Reptiles D Paleozoic Carboniferous Mississippian Earth formed 0 Precambrian (Hadean Era) T-Rex P Mesozoic Cretaceous Dog & Cats R Cenozoic Tertiary Paleocene Life originates 1 Precambrian (Hadean Era) Flowering Plants M Mesazoic Cretaceous Now that you have been introduced to the history of life you may be surprised by what you have learned. Discuss some of the things that surprise you from what you learned while working with the time scale activity and explain why you were surprised Student answers will vary …flowering plants evolved so late… … grasses weren’t always around…
Use the dot chart: In the “events” column, each event has a letter or number code that can be found in the chart. Fill in the following chart: Event #/Letter Era Period (System) Epoch (Series) Amphibians A Paleozoic Devonian Bacteria 4 Precambrian (Archean Era) Fish 7 Paleozoic Oridvician Mammals G Mesozoic Triassic Monkeys V Cenozoic Tertiary Eocene Cells w/nucleus 5 Precambrain (Proterozoic Era) Reptiles D Paleozoic Carboniferous Mississippian Earth formed 0 Precambrian (Hadean Era) T-Rex P Mesozoic Cretaceous Dog & Cats R Cenozoic Tertiary Paleocene Life originates 1 Precambrian (Hadean Era) Flowering Plants M Mesazoic Cretaceous Now that you have been introduced to the history of life you may be surprised by what you have learned. Discuss some of the things that surprise you from what you learned while working with the time scale activity and explain why you were surprised Student answers will vary …flowering plants evolved so late… … grasses weren’t always around…
geologic_time_scale_ws13_key.docx