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101 Crazy Theories About Dinosaur Extinction
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This document presents a number of theories, both plausible and implausible or even humorous, for the extinction of the dinosaurs. Links to a glossary are embedded in the text. A reading list and links to related sites are also provided.

Subject:
Life Science
Chemistry
Geoscience
Physics
Space Science
Provider:
UCAR Staff
Provider Set:
NASA Earth and Space Science Education Collection
12 Steps to a Sustainable High School
Conditions of Use:
Remix and Share
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This activity includes an assessment, analysis, and action tool that can be used by classrooms to promote understanding of how the complex current issues of energy, pollution, supply and consumption are not just global but also local issues.

Material Type:
Activity/Lab
Provider:
CLEAN: Climate Literacy and Energy Awareness Network
Provider Set:
CLEAN: Climate Literacy and Energy Awareness Network
1492: Using Data to Explain a Journey
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No Strings Attached
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Back in the days of Christopher Columbus, voyages made across bodies of water were dependent upon winds and currents to drive the sailing ships. Thus good navigation routes were often determined by prevailing weather conditions such as the Trade Winds, and then discovered by explorers. In this lesson, students will explore the wind climatology for the Atlantic Ocean basin (as determined by satellite data from the past ten years), and then compare it to the route documented by Columbus in 1492.

Subject:
Engineering
Technology
History, Law, Politics
Mathematics
Geoscience
Material Type:
Activity/Lab
Data Set
Lesson Plan
Provider:
NASA
Provider Set:
My NASA DatA+
NASA Wavelength
Author:
Malinda Burk
1964 Alaska Earthquake
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This video adapted from the Valdez Museum & Historical Archive, explores what happened during the Great Alaska Earthquake of 1964 through original footage, first-person accounts, and animations illustrating plate tectonics. ***Access to Teacher's Domain content now requires free login to PBS Learning Media.

Subject:
Geoscience
Space Science
Material Type:
Lecture
Provider:
PBS LearningMedia
Provider Set:
PBS Learning Media: Multimedia Resources for the Classroom and Professional Development
Teachers' Domain
Author:
National Science Foundation
WGBH Educational Foundation
1993 New Car Data
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This dataset, created by Robin H. Locke of St. Lawrence University, describes 93 new cars for the 1993 model year with 26 variables, including price, mpg ratings, and engine size. It also illustrates a broad range of statistical techniques such as box-whisker plot, confidence intervals, difference in means, one-way ANOVA, contingency table, scatterplot, regression, and correlation. If further research is required the author has included a list of references.

Subject:
Mathematics
Material Type:
Data Set
Lesson Plan
Provider:
AMSER: Applied Math and Science Education Repository
Provider Set:
AMSER: Applied Math and Science Education Repository
Author:
Lock, Robin H.
1H-pyrazole C₃H₄N₂
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3D interactive model of 1H-pyrazole C₃H₄N₂ for demonstrating molecular geometry, vibrations, symmetry and orbitals.

Subject:
Life Science
Chemistry
Material Type:
Simulation
Provider:
Chemical Education Digital Library
Provider Set:
Chemical Education Digital Library (ChemEd DL)
Author:
Board of Reagents, University of Wisconsin
1H-pyridine-2-thione C₅H₅NS
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3D interactive model of 1H-pyridine-2-thione C₅H₅NS for demonstrating molecular geometry, vibrations, symmetry and orbitals.

Subject:
Life Science
Chemistry
Material Type:
Simulation
Provider:
Chemical Education Digital Library
Provider Set:
Chemical Education Digital Library (ChemEd DL)
Author:
Board of Reagents, University of Wisconsin
1H-pyrrole C₄H₅N
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3D interactive model of 1H-pyrrole C₄H₅N for demonstrating molecular geometry, vibrations, symmetry and orbitals.

Subject:
Life Science
Chemistry
Material Type:
Simulation
Provider:
Chemical Education Digital Library
Provider Set:
Chemical Education Digital Library (ChemEd DL)
Author:
Board of Reagents, University of Wisconsin
1.NBT Ford and Logan Add 45+36
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No Strings Attached
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This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important aspects of the task and its potential use.

Subject:
Numbers and Operations
Material Type:
Activity/Lab
Provider:
Illustrative Mathematics
Provider Set:
Illustrative Mathematics
Author:
Illustrative Mathematics
1.NBT Number Square
Conditions of Use:
No Strings Attached
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This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important aspects of the task and its potential use.

Subject:
Numbers and Operations
Material Type:
Activity/Lab
Provider:
Illustrative Mathematics
Provider Set:
Illustrative Mathematics
Author:
Illustrative Mathematics
1.OA Doubles?
Conditions of Use:
No Strings Attached
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This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important aspects of the task and its potential use.

Subject:
Algebra
Material Type:
Activity/Lab
Provider:
Illustrative Mathematics
Provider Set:
Illustrative Mathematics
Author:
Illustrative Mathematics
1R_2S-1_2-diaminocyclohexane C₆H₁₄N₂
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3D interactive model of 1R_2S-1_2-diaminocyclohexane C₆H₁₄N₂ for demonstrating molecular geometry, vibrations, symmetry and orbitals.

Subject:
Life Science
Chemistry
Material Type:
Simulation
Provider:
Chemical Education Digital Library
Provider Set:
Chemical Education Digital Library (ChemEd DL)
Author:
Board of Reagents, University of Wisconsin
1R_2S-1_2-dimethylcyclopentane C₇H₁₄
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3D interactive model of 1R_2S-1_2-dimethylcyclopentane C₇H₁₄ for demonstrating molecular geometry, vibrations, symmetry and orbitals.

Subject:
Life Science
Chemistry
Material Type:
Simulation
Provider:
Chemical Education Digital Library
Provider Set:
Chemical Education Digital Library (ChemEd DL)
Author:
Board of Reagents, University of Wisconsin
1R_3S-1_3-dimethylcyclopentane C₇H₁₄
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3D interactive model of 1R_3S-1_3-dimethylcyclopentane C₇H₁₄ for demonstrating molecular geometry, vibrations, symmetry and orbitals.

Subject:
Life Science
Chemistry
Material Type:
Simulation
Provider:
Chemical Education Digital Library
Provider Set:
Chemical Education Digital Library (ChemEd DL)
Author:
Board of Reagents, University of Wisconsin
1R-camphene C₁₀H₁₆
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3D interactive model of 1R-camphene C₁₀H₁₆ for demonstrating molecular geometry, vibrations, symmetry and orbitals.

Subject:
Life Science
Chemistry
Material Type:
Simulation
Provider:
Chemical Education Digital Library
Provider Set:
Chemical Education Digital Library (ChemEd DL)
Author:
Board of Reagents, University of Wisconsin
1R-camphor C₁₀H₁₆O
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3D interactive model of 1R-camphor C₁₀H₁₆O for demonstrating molecular geometry, vibrations, symmetry and orbitals.

Subject:
Life Science
Chemistry
Material Type:
Simulation
Provider:
Chemical Education Digital Library
Provider Set:
Chemical Education Digital Library (ChemEd DL)
Author:
Board of Reagents, University of Wisconsin
1S_2R-1_2-diphenylethane-1_2-diol C₁₄H₁₄O₂
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3D interactive model of 1S_2R-1_2-diphenylethane-1_2-diol C₁₄H₁₄O₂ for demonstrating molecular geometry, vibrations, symmetry and orbitals.

Subject:
Life Science
Chemistry
Material Type:
Simulation
Provider:
Chemical Education Digital Library
Provider Set:
Chemical Education Digital Library (ChemEd DL)
Author:
Board of Reagents, University of Wisconsin
1S_2S-1_2-diaminocyclohexane C₆H₁₄N₂
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3D interactive model of 1S_2S-1_2-diaminocyclohexane C₆H₁₄N₂ for demonstrating molecular geometry, vibrations, symmetry and orbitals.

Subject:
Life Science
Chemistry
Material Type:
Simulation
Provider:
Chemical Education Digital Library
Provider Set:
Chemical Education Digital Library (ChemEd DL)
Author:
Board of Reagents, University of Wisconsin
1S_2S-1-ethyl-2-methylcyclopentane C₈H₁₆
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3D interactive model of 1S_2S-1-ethyl-2-methylcyclopentane C₈H₁₆ for demonstrating molecular geometry, vibrations, symmetry and orbitals.

Subject:
Life Science
Chemistry
Material Type:
Simulation
Provider:
Chemical Education Digital Library
Provider Set:
Chemical Education Digital Library (ChemEd DL)
Author:
Board of Reagents, University of Wisconsin
1_10-phenanthroline C₁₂H₈N₂
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3D interactive model of 1_10-phenanthroline C₁₂H₈N₂ for demonstrating molecular geometry, vibrations, symmetry and orbitals.

Subject:
Life Science
Chemistry
Material Type:
Simulation
Provider:
Chemical Education Digital Library
Provider Set:
Chemical Education Digital Library (ChemEd DL)
Author:
Board of Reagents, University of Wisconsin
1_1_1_2_2_2-hexafluoroethane C₂F₆
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3D interactive model of 1_1_1_2_2_2-hexafluoroethane C₂F₆ for demonstrating molecular geometry, vibrations, symmetry and orbitals.

Subject:
Life Science
Chemistry
Material Type:
Simulation
Provider:
Chemical Education Digital Library
Provider Set:
Chemical Education Digital Library (ChemEd DL)
Author:
Board of Reagents, University of Wisconsin
1_1_1_2_2-pentafluoroethane C₂HF₅
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3D interactive model of 1_1_1_2_2-pentafluoroethane C₂HF₅ for demonstrating molecular geometry, vibrations, symmetry and orbitals.

Subject:
Life Science
Chemistry
Material Type:
Simulation
Provider:
Chemical Education Digital Library
Provider Set:
Chemical Education Digital Library (ChemEd DL)
Author:
Board of Reagents, University of Wisconsin
1_1_1_3_3_3-hexafluoropropan-2-ol C₃H₂F₆O
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3D interactive model of 1_1_1_3_3_3-hexafluoropropan-2-ol C₃H₂F₆O for demonstrating molecular geometry, vibrations, symmetry and orbitals.

Subject:
Life Science
Chemistry
Material Type:
Simulation
Provider:
Chemical Education Digital Library
Provider Set:
Chemical Education Digital Library (ChemEd DL)
Author:
Board of Reagents, University of Wisconsin
1_1_1-trichloroacetonitrile C₂Cl₃N
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3D interactive model of 1_1_1-trichloroacetonitrile C₂Cl₃N for demonstrating molecular geometry, vibrations, symmetry and orbitals.

Subject:
Life Science
Chemistry
Material Type:
Simulation
Provider:
Chemical Education Digital Library
Provider Set:
Chemical Education Digital Library (ChemEd DL)
Author:
Board of Reagents, University of Wisconsin
1_1_1-trichloroethane C₂H₃Cl₃
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3D interactive model of 1_1_1-trichloroethane C₂H₃Cl₃ for demonstrating molecular geometry, vibrations, symmetry and orbitals.

Subject:
Life Science
Chemistry
Material Type:
Simulation
Provider:
Chemical Education Digital Library
Provider Set:
Chemical Education Digital Library (ChemEd DL)
Author:
Board of Reagents, University of Wisconsin
1_1_2_2-tetrachloroethane C₂H₂Cl₄
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3D interactive model of 1_1_2_2-tetrachloroethane C₂H₂Cl₄ for demonstrating molecular geometry, vibrations, symmetry and orbitals.

Subject:
Life Science
Chemistry
Material Type:
Simulation
Provider:
Chemical Education Digital Library
Provider Set:
Chemical Education Digital Library (ChemEd DL)
Author:
Board of Reagents, University of Wisconsin
1_2-oxazole C₃H₃NO
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3D interactive model of 1_2-oxazole C₃H₃NO for demonstrating molecular geometry, vibrations, symmetry and orbitals.

Subject:
Life Science
Chemistry
Material Type:
Simulation
Provider:
Chemical Education Digital Library
Provider Set:
Chemical Education Digital Library (ChemEd DL)
Author:
Board of Reagents, University of Wisconsin
1_2-thiazole C₃H₃NS
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3D interactive model of 1_2-thiazole C₃H₃NS for demonstrating molecular geometry, vibrations, symmetry and orbitals.

Subject:
Life Science
Chemistry
Material Type:
Simulation
Provider:
Chemical Education Digital Library
Provider Set:
Chemical Education Digital Library (ChemEd DL)
Author:
Board of Reagents, University of Wisconsin
1_2-xylene C₈H₁₀
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3D interactive model of 1_2-xylene C₈H₁₀ for demonstrating molecular geometry, vibrations, symmetry and orbitals.

Subject:
Chemistry
Material Type:
Simulation
Provider:
Chemical Education Digital Library
Provider Set:
Chemical Education Digital Library (ChemEd DL)
Author:
Board of Reagents, University of Wisconsin
1_3_5-trichloro-2-methoxybenzene C₇H₅Cl₃O
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3D interactive model of 1_3_5-trichloro-2-methoxybenzene C₇H₅Cl₃O for demonstrating molecular geometry, vibrations, symmetry and orbitals.

Subject:
Life Science
Chemistry
Material Type:
Simulation
Provider:
Chemical Education Digital Library
Provider Set:
Chemical Education Digital Library (ChemEd DL)
Author:
Board of Reagents, University of Wisconsin
1_3_5-trimethylbenzene C₉H₁₂
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3D interactive model of 1_3_5-trimethylbenzene C₉H₁₂ for demonstrating molecular geometry, vibrations, symmetry and orbitals.

Subject:
Life Science
Chemistry
Material Type:
Simulation
Provider:
Chemical Education Digital Library
Provider Set:
Chemical Education Digital Library (ChemEd DL)
Author:
Board of Reagents, University of Wisconsin
1_3-dichloropropane C₃H₆Cl₂
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3D interactive model of 1_3-dichloropropane C₃H₆Cl₂ for demonstrating molecular geometry, vibrations, symmetry and orbitals.

Subject:
Life Science
Chemistry
Material Type:
Simulation
Provider:
Chemical Education Digital Library
Provider Set:
Chemical Education Digital Library (ChemEd DL)
Author:
Board of Reagents, University of Wisconsin
1_3-thiazole C₃H₃NS
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3D interactive model of 1_3-thiazole C₃H₃NS for demonstrating molecular geometry, vibrations, symmetry and orbitals.

Subject:
Life Science
Chemistry
Material Type:
Simulation
Provider:
Chemical Education Digital Library
Provider Set:
Chemical Education Digital Library (ChemEd DL)
Author:
Board of Reagents, University of Wisconsin
1_3-xylene C₈H₁₀
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3D interactive model of 1_3-xylene C₈H₁₀ for demonstrating molecular geometry, vibrations, symmetry and orbitals.

Subject:
Chemistry
Material Type:
Simulation
Provider:
Chemical Education Digital Library
Provider Set:
Chemical Education Digital Library (ChemEd DL)
Author:
Board of Reagents, University of Wisconsin
1_4_7_10_13_16-hexaoxacyclooctadecane C₁₂H₂₄O₆
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3D interactive model of 1_4_7_10_13_16-hexaoxacyclooctadecane C₁₂H₂₄O₆ for demonstrating molecular geometry, vibrations, symmetry and orbitals.

Subject:
Life Science
Chemistry
Material Type:
Simulation
Provider:
Chemical Education Digital Library
Provider Set:
Chemical Education Digital Library (ChemEd DL)
Author:
Board of Reagents, University of Wisconsin
1_4-dichlorobut-2-yne C₄H₄Cl₂
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3D interactive model of 1_4-dichlorobut-2-yne C₄H₄Cl₂ for demonstrating molecular geometry, vibrations, symmetry and orbitals.

Subject:
Life Science
Chemistry
Material Type:
Simulation
Provider:
Chemical Education Digital Library
Provider Set:
Chemical Education Digital Library (ChemEd DL)
Author:
Board of Reagents, University of Wisconsin
1_4-dioxane C₄H₈O₂
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3D interactive model of 1_4-dioxane C₄H₈O₂ for demonstrating molecular geometry, vibrations, symmetry and orbitals.

Subject:
Life Science
Chemistry
Material Type:
Simulation
Provider:
Chemical Education Digital Library
Provider Set:
Chemical Education Digital Library (ChemEd DL)
Author:
Board of Reagents, University of Wisconsin
1_4-xylene C₈H₁₀
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3D interactive model of 1_4-xylene C₈H₁₀ for demonstrating molecular geometry, vibrations, symmetry and orbitals.

Subject:
Chemistry
Material Type:
Simulation
Provider:
Chemical Education Digital Library
Provider Set:
Chemical Education Digital Library (ChemEd DL)
Author:
Board of Reagents, University of Wisconsin