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Atmospheric Oxygen
Read the Fine Print
Educational Use
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In this feature, adapted from Interactive NOVA: "Earth," students explore the relationship between oxygen concentration and the well-being of various organisms by simulating a change in oxygen levels and observing what happens.

Subject:
Life Science
Science
Material Type:
Activity/Lab
Interactive
Provider:
PBS LearningMedia
Author:
National Science Foundation
WGBH Educational Foundation
Date Added:
09/26/2003
Atmospheric Oxygen
Read the Fine Print
Educational Use
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In this feature, adapted from Interactive NOVA: Earth, students explore the relationship between oxygen concentration and the well-being of various organisms by simulating a change in oxygen levels and observing what happens.

Subject:
Science
Material Type:
Interactive
Lesson
Provider:
PBS LearningMedia
Date Added:
11/06/2023
Biology 2e
Unrestricted Use
CC BY
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Biology 2e is designed to cover the scope and sequence requirements of a typical two-semester biology course for science majors. The text provides comprehensive coverage of foundational research and core biology concepts through an evolutionary lens. Biology includes rich features that engage students in scientific inquiry, highlight careers in the biological sciences, and offer everyday applications. The book also includes various types of practice and homework questions that help students understand—and apply—key concepts. The 2nd edition has been revised to incorporate clearer, more current, and more dynamic explanations, while maintaining the same organization as the first edition. Art and illustrations have been substantially improved, and the textbook features additional assessments and related resources.

Subject:
Biology
Material Type:
Full Course
Provider:
Rice University
Provider Set:
OpenStax College
Date Added:
03/07/2018
Breathe In, Breathe Out
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Educational Use
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Students are introduced to the respiratory system, the lungs and air. They learn about how the lungs and diaphragm work, how air pollution affects lungs and respiratory functions, some widespread respiratory problems, and how engineers help us stay healthy by designing machines and medicines that support respiratory health and function.

Subject:
Engineering
Life Science
Science
Material Type:
Activity/Lab
Lesson Plan
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Denise W. Carlson
Jay Shah
Malinda Schaefer Zarske
Date Added:
09/18/2014
Breathing Cells
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Educational Use
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Students use a simple pH indicator to measure how much CO2 is produced during respiration, at rest and after exercising. They begin by comparing some common household solutions in order to determine the color change of the indicator. They review the concepts of pH and respiration and extend their knowledge to measuring the effectiveness of bioremediation in the environment.

Subject:
Chemistry
Engineering
Science
Material Type:
Activity/Lab
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Janet Yowell
Kaelin Cawley
Malinda Schaefer Zarske
Date Added:
10/14/2015
The Carbon Cycle
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Educational Use
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Useful introduction to the carbon cycle with a diagram and a discussion of the effects of carbon dioxide on the greenhouse effect and global warming.

Subject:
Science
Material Type:
Lesson
Provider:
Kimball's Biology Pages
Date Added:
08/07/2023
Cardiogenic Shock
Conditional Remix & Share Permitted
CC BY-NC-SA
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Symptons, diagnosis, and treatment of cardiogenic shock.

Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.

Subject:
Science
Material Type:
Audio/Video
Lesson
Provider:
Khan Academy
Date Added:
10/03/2022
Chem 1: Types of acids and bases
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Educational Use
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Acting as an overview from the General Chemistry Virtual Textbook, this site explores topics related to the various types of acids and bases. The topics covered include binary hydrogen compounds, hydroxy compounds, oxygen compounds, and more.

Subject:
Science
Material Type:
Reading
Textbook
Provider:
Chem1 General Chemistry Virtual Textbook
Author:
Stephen Lower, PhD, Professor Emeritas Simon Fraser University
Date Added:
08/28/2023
Cosmology and Astronomy: Beginnings of Life (2): Ozone Layer and Eukaryotes Show Up in the Proterozoic Eon
Conditional Remix & Share Permitted
CC BY-NC-SA
Rating
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This 10-minute video lesson contiues to discuss the beginnings of life on Earth. The ozone layer and eukaryotes show up in the proterozoic eon. It includes the great oxygenation event (oxygen catastrophe). [Cosmology and Astronomy playlist: Lesson 40 of 85]

Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.

Subject:
Earth and Space Science
Science
Material Type:
Lecture
Provider:
Khan Academy
Provider Set:
Khan Academy
Author:
Salman Khan
Date Added:
02/20/2011
EEK!: Activity: Trees and Air Quality
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Educational Use
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Site offers lessons and activities designed to supplement study of the environment and ecology. Concise explanations are presented on the importance of trees in our world. Also, problem solving and creative thinking is encouraged throughout this lesson. Ideal for grades 4-8.

Subject:
Science
Material Type:
Lesson Plan
Provider:
Wisconsin Green Schools Network - Environmental Education for Kids
Date Added:
08/07/2023
Earth: Life Before Oxygen
Read the Fine Print
Educational Use
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0.0 stars

This Interactive NOVA: "Earth" video segment looks at ancient organisms that lived anaerobically, the origins of photosynthesis, and the new forms of life this process made possible. [1:39]

Subject:
Science
Material Type:
Audio/Video
Provider:
PBS LearningMedia
Date Added:
11/06/2023
Engineering and the Periodic Table
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Educational Use
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Students learn about the periodic table and how pervasive the elements are in our daily lives. After reviewing the table organization and facts about the first 20 elements, they play an element identification game. They also learn that engineers incorporate these elements into the design of new products and processes. Acting as computer and animation engineers, students creatively express their new knowledge by creating a superhero character based on of the elements they now know so well. They will then pair with another superhero and create a dynamic duo out of the two elements, which will represent a molecule.

Subject:
Chemistry
Engineering
Science
Material Type:
Activity/Lab
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Date Added:
10/14/2015
Got Dirty Air?
Read the Fine Print
Educational Use
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This lesson introduces students to the concepts of air pollution and technologies that have been developed by engineers to reduce air pollution. Students develop an understanding of visible air pollutants with an incomplete combustion demonstration, a "smog in a jar" demonstration, construction of simple particulate matter collectors and by exploring engineering roles related to air pollution. Next, students develop awareness and understanding of the daily air quality and trends in air quality using the Air Quality Index (AQI) listed in the newspaper. Finally, students build and observe a variety of simple models in order to develop an understanding of how engineers use these technologies to clean up and prevent air pollution.

Subject:
Earth and Space Science
Engineering
Science
Material Type:
Activity/Lab
Lesson Plan
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Amy Kolenbrander
Janet Yowell
Jessica Todd
Malinda Schaefer Zarske
Date Added:
09/18/2014
Helium Is Boring
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Educational Use
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In this video adapted from the National Science Center, observe a demonstration to discover how helium gas is inert and hydrogen gas is reactive.

Subject:
Chemistry
Physics
Science
Material Type:
Lecture
Provider:
PBS LearningMedia
Author:
National Science Foundation
WGBH Educational Foundation
Date Added:
08/09/2007
Hydrogen-Oxygen Reaction Lab
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Educational Use
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This lab exercise exposes students to a potentially new alternative energy source hydrogen gas. Student teams are given a hydrogen generator and an oxygen generator. They balance the chemical equation for the combustion of hydrogen gas in the presence of oxygen. Then they analyze what the equation really means. Two hypotheses are given, based on what one might predict upon analyzing the chemical equation. Once students have thought about the process, they are walked through the experiment and shown how to collect the gas in different ratios. By trial and error, students determine the ideal combustion ratio. For both volume of explosion and kick generated by explosion, they qualitatively record results on a 0-4 scale. Then, students evaluate their collected results to see if the hypotheses were correct and how their results match the theoretical equation. Students learn that while hydrogen will most commonly be used for fuel cells (no combustion situation), it has been used in rocket engines (for which a tremendous combustion occurs).

Subject:
Chemistry
Engineering
Science
Material Type:
Activity/Lab
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Courtney Herring
Stephen Dent
Date Added:
09/18/2014
Impact of Carbon Dioxide Levels on the Structure of Hemoglobin
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Educational Use
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This interactive image of an oxygen-binding curve for hemoglobin demonstrates
how changes in the concentration of carbon dioxide impact the environmental
pH and the structure of the hemoglobin protein, thereby altering its ability to
bind oxygen.

Subject:
Biology
Science
Material Type:
Interactive
Provider:
LabXchange
Provider Set:
LabXchange Interactives
Date Added:
02/18/2020
Life Before Oxygen
Read the Fine Print
Educational Use
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Three billion years ago single-celled underwater bacteria used sunlight to convert carbon dioxide and water into tiny oxygen bubbles. Soon plants were turning an atmosphere full of volcanic carbon dioxide into oxygen. As we learn in this video segment from Interactive NOVA: "Earth," photosynthesis created a good home for animals and humans, though not for some primitive organisms. They had to retreat to where oxygen couldn't reach them. Join researchers as they search for these organisms, now considered tiny time capsules from a time before there was oxygen on Earth.

Subject:
Biology
Science
Material Type:
Activity/Lab
Provider:
PBS LearningMedia
Author:
WGBH Educational Foundation
Date Added:
12/17/2005