Science
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Science Course: Seventh Grade Unit: Survival of an Organism TEKS/Prerequisites 7.10b Describe how biodiversity contributes to the sustainability of an ecosystem. (Supporting Standard) Guiding Questions/ Specificity Sample Assessment Guiding Questions -Why is biodiversity important? - What factors in an ecosystem sustain life and allow biodiversity? Which of the following increases the sustainability of an ecosystem? A. increased biodiversity B. increased external stimuli C. decreased heredity D. decreased internal stimuli Teacher Notes: - Biotic and abiotic factors promote biodiversity Designated Six Weeks: 4th Six Weeks Days to teach: 28 Days (3-5 days for each TEKS) Vocabulary Instructional Resources/ Strategies/ELPS Weblinks Biodiversity Contribute Sustainability Ecosystem Biotic Abiotic Lab Activities Intro to Biodiversity Stemscopes: https://n11052d40706.acce leratelearning.com/login Exemplar Lesson Biodiversity TEKS 7.10B Google Drive: Middle School Science Texas Eco-Regions ELPS Strategies: http://ritter.tea.state.t x.us/rules/tac/chapter 074/ch074a.html 4F: visuals/video 3J: manipulatives 2H: comprehension strategies http://www.tpwd.state.tx.us/kids /about_texas/regions/ Food Webs http://www.gould.edu.au/foodwe bs/kids_web.htm World Biomes http://www.ucmp.berkeley.edu/g lossary/gloss5/biome/ Abiotic vs Biotic Worksheet http://printableworksheets.in/?dq =Biotic%20And%20Abiotic%20 Factors Revised Spring 2015 Science Course: Seventh Grade Unit: Survival of an Organism TEKS/Prerequisites 7.12a-- investigate and explain how internal structures of organisms have adaptations that allow specific functions such as gills in fish, hollow bones in birds, or xylem in plants Guiding Questions/ Specificity Sample Assessment Guiding Question What internal structures increase the survivability of certain organisms? On the savannah, which animal is best adapted for feeding on the leaves of trees? a. zebra b. hyena c. giraffe d. lion Which adaptation is best suited for flying? a. light, hollow bones b. large body size c. large amounts of body fat d. strong, dense bones Revised Spring 2015 Designated Six Weeks: 4th Six Weeks Days to teach: 28 Days (3-5 days for each TEKS) Vocabulary Instructional Resources/ Strategies/ELPS Weblinks Internal structure Organism Adaptation Specific Function Xylem Gills Lab Activities - Squirrel Islands Exemplar Lessons. TEKS 7.12A. Adaptations From pictures of various animals, explain their adaptations for specific functions ELPS Strategies http://ritter.tea.state.t x.us/rules/tac/chapter 074/ch074a.html 4F: visuals, manipulatives 2I: Perspective-Based Activities Stemscopes: https://n11052d40706.acce leratelearning.com/login Google Drive: Middle School Science Science Course: Seventh Grade Unit: Survival of an Organism TEKS/Prerequisites 7.11c-- identify some changes in genetic traits that can have occurred over several generations through natural selection and selective breeding such as the Galapagos Medium Ground Finch (Geospiza fortis)or domestic animals (Supporting Standard) Guiding Questions/ Specificity Guiding Question What is natural selection and how is it related to adaptation? Sample Assessment The organisms with favorable traits are more likely to thrive, reproduce, and pass their traits on to future generations. This is known as: a. selective breeding b. artificial selection c. natural selection d. genetic engineering Designated Six Weeks: 4th Six Weeks Days to teach: 28 Days (3-5 days for each TEKS) Vocabulary Instructional Resources/ Strategies/ELPS Weblinks Gene Trait Generation Natural selection Selective breeding Galapagos Finch Domestic Survival Lab Activities: -Natural Selection game: wolves vs. rabbits -Nature at Work Lab -Bird Beak Lab -Pepper Moth Lab Exemplar Lesson. TEKS 7.11C. Natural Selection Stemscopes: https://n11052d40706.acce leratelearning.com/login Galapagos Finch http://www.pbs.org/safarch ive/5_cool/galapagos/g53_ more.html Google Drive: Middle School Science ELPS Strategies http://ritter.tea.state.t x.us/rules/tac/chapter 074/ch074a.html 4F: visuals 3J: Graphic Organizer Revised Spring 2015 Flipchart: Natural Selection and Variation Science Course: Seventh Grade Unit: Survival of an Organism TEKS/Prerequisites 7.11b-- Explain variation within a population or species by comparing external features, behaviors, or physiology of organisms that enhance their survival such as migration, hibernation, or storage of food in a bulb Guiding Questions/ Specificity Guiding Question What external structures or behaviors increase the survivability of certain organisms? Teacher Notes: Variations and features behaviors and physiology in a population are because of genetic variations. Sample Assessment Which of the following is least likely to produce genetic variation in a population? a. natural selection b. sexual reproduction c. asexual reproduction d. mutation Tulips store food in a bulb to survive until the next growing season. Which of the following adaptations is most similar? Variation Lab Activities: Blending Butterflies Population Species External feature Exemplar Lesson Variations Within Populations TEKS 7.11B Lab Activities Behavior No Thumbs Activity Physiology Migration Hibernation Bulb a. a male bird’s brightly colored feathers b. a grizzly storing fat in her body to hibernate c. monarch butterflies migrating south for the winter d. a bison’s horns helping him fight rival males Revised Spring 2015 Designated Six Weeks: 4th Six Weeks Days to teach: 28 Days (3-5 days for each TEKS) Vocabulary Instructional Resources/ Strategies/ELPS Weblinks ELPS SE/Strategies: Link: http://ritter.tea.state.t x.us/rules/tac/chapter 074/ch074a.html 4F: Concept Attainment-hands on, manipulatives Google Drive: Middle School Science Science Course: Seventh Grade Unit: Survival of an Organism TEKS/Prerequisites 7.11a-- Examine organisms or their structures such as insects or leaves and use dichotomous keys for identification (Supporting Standard) Guiding Questions/ Specificity Guiding Question: How are dichotomous keys used to identify organisms? Specificity -Teachers may consider asking students why it is necessary to identify and classify organisms Teacher Note - Students were introduced in 6th grade to the classification systems with domains as the highest classification level. Revised Spring 2015 Sample Assessment Designated Six Weeks: 4th Six Weeks Days to teach: 28 Days (3-5 days for each TEKS) Vocabulary Instructional Resources/ Strategies/ELPS Weblinks What is the Organism purpose of a dichotomous key? Structure Lab Activities: Pamishan Creatures D.Key - Alien/Pamishan http://www.biologycorner.com/ Dichotomous Key worksheets/pamishan.html a. define terms related to plants b. divide data into two equal levels c. separate coarse and fine particles d. classify organisms Exemplar Lessons Dichotomous Keys TEKS 7.11A Insect Dichotomous key Classification Identification Domains What is the first division of living organisms? a. Kingdom b. Phylum c. Class d. Order http://sciencespot.net /Media/sillysci.pdf - “Fun With Classification” - Leaf Tree ID - Shoe Classification Lab Exemplar Lessons. TEKS 7.11A. Dichotomous Keys ELPS SE/Strategies: Link: http://ritter.tea.state.tx.u s/rules/tac/ chapter074/ch074a.htm l 4F: visuals 3J: Graphic Organizer Google Drive: Middle School Science Taxonomy Intro http://www.saburchill.com/chapt ers/chap0111.html http://www.biologycorner.com/ worksheets/taxonomy_interpret. html ID a Tree http://nationalzoo.si.edu/Educati on/ConservationCentral/walk/wa lk4.html Insect Dichotomous Key http://www.insectidentification.o rg/insect-key.asp Google Drive: Middle School Science
