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Search Results (116)

1900 Air Pollution

1900 Air Pollution

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This article and included graphs,from the web site accompanying the FRONTLINE NOVA special What's Up with the Weather?, reveals how atmospheric carbon dioxide, methane, and nitrous oxides from coal- and oil-burning power plants, cars, and other fossil-fuel-burning sources have climbed along with the world population, with as yet unknown effects on the climate system.

Subject:: Geoscience; Physics; Space Science
Material Type:: Data Set; Diagram/Illustration; Lesson Plan
Provider:: NSDL Staff
Provider Set:: NSDL Science Refreshers
Date Added:: 12/26/2002

ABC's of Nuclear Science

ABC's of Nuclear Science

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This page's description of the various kinds of radioactivity includes some discussion of the history of its discovery, illustrations, and hot links to related sites.

Subject:: Engineering; Education; Chemistry; Physics
Material Type:: Diagram/Illustration
Provider:: NSDL Staff
Provider Set:: NSDL Science Refreshers
Date Added:: 03/30/2007

Acceleration

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This page is from a comprehensive and comprehensible tutorial in physics. Schematic drawings, questions for understanding with the answerers, and links to animations are included.

Subject:: Mathematics; Chemistry; Physics
Material Type:: Diagram/Illustration
Provider:: NSDL Staff
Provider Set:: NSDL Science Refreshers
Date Added:: 11/06/2010

The Aneroid Barometer and How to Use It

The Aneroid Barometer and How to Use It

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This article defines barometer, gives its history, describes how the aneroid barometer works, and is enhanced with photos and illustrations.

Subject:: Geoscience; Physics; Space Science
Material Type:: Diagram/Illustration
Provider:: NSDL Staff
Provider Set:: NSDL Science Refreshers
Date Added:: 11/06/1990

Animal Behaviour

Animal Behaviour

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This site is written by a veterinarian and has separate pages for various classes of animals such as domesticated, farm, and exotic animals. There is also an online book available to the user in which they can find more information on some of the same plus some additional animal behaviors.

Subject:: Geoscience
Material Type:: Diagram/Illustration
Provider:: NSDL Staff
Provider Set:: NSDL Science Refreshers
Author:: Dr. Paul McGreevey
Date Added:: 11/06/2010

Animal Diversity Web

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Read the Fine Print

Animal Diversity Web

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This site is a searchable encyclopedia of thousands of photos, descriptions, sound recordings, and other information about individual animal species. Find out about amphibians, arthropods, birds, fishes, insects, mammals, mollusks, reptiles, and sharks. Explore special features on mammals, skulls, and frog calls. Students are invited to contribute.

Material Type:: Diagram/Illustration
Provider:: NSDL Staff; UCAR; UCAR Staff; University Corporation for Atmospheric Research
Provider Set:: NSDL Science Refreshers; Bridge: Sea Grant Ocean Sciences Resources Center; DLESE Community Collection; DLESE Community Collection
Date Added:: 11/06/2008

Atomic Theory II: Ions, Isotopes and Electron Shells

Atomic Theory II: Ions, Isotopes and Electron Shells

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This lesson explains the presence of ions, isotopes and discusses N. Bohr's theory on the quantum behaviour of electrons. This module is the second in a series on atomic structure.

Subject:: Engineering; Education; Chemistry; Physics; Space Science
Material Type:: Assessment; Interactive; Unit of Study
Provider:: NSDL Staff; UCAR Staff
Provider Set:: NSDL Science Refreshers; Visionlearning
Author:: Anthony Carpi; Anthony Carpi, Ph.D.
Date Added:: 11/06/2003

Atoms Around Us

Atoms Around Us

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Though titled for kids the information presented at this site is thorough and supported with hot links to related concepts as well as illustrations. Click on the blue Next Stop on the Tour button to continue learning.

Subject:: Engineering; Chemistry; Physics
Material Type:: Diagram/Illustration
Provider:: NSDL Staff
Provider Set:: NSDL Science Refreshers
Date Added:: 11/06/2009

Atoms: The Space Between

Atoms: The Space Between

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This video segment adapted from A Science Odyssey takes a look at the scale of the atom and the tremendous amount of space between the electrons and the nucleus. If all this empty space exists in matter, how can any substance be solid?

Subject:: Engineering; Chemistry; Physics
Material Type:: Lesson Plan
Provider:: NSDL Staff
Provider Set:: NSDL Science Refreshers
Date Added:: 01/22/2002

Black Magic

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Most non-permanent markers use inks that are made of mixtures of colored pigments and water. How does Black Magic work? Why do some black inks separate into many colors on a wet coffee filter? Why does mixing many colors of ink make black?

Subject:: Engineering; Life Science; Chemistry; Physics
Material Type:: Activity/Lab
Provider:: NSDL Staff
Provider Set:: NSDL Science Refreshers
Date Added:: 11/06/2010

Body Control Center

Body Control Center

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The amount of monitoring and adjusting that goes on in the human body at any given time is astounding. In this interactive feature every change in activity requires you to make adjustments in respiration or heart rate or energy delivery, and an adjustment to one system often changes the balance in some other system. See if you can do as good a job maintaining the harmony in this virtual body as your nervous system does in you.

Subject:: Life Science
Material Type:: Interactive; Lesson Plan
Provider:: NSDL Staff
Provider Set:: NSDL Science Refreshers
Date Added:: 09/26/2003

Carbon Compounds

Carbon Compounds

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This short article describes the common properties of all carbon containing compounds and points out that basis of life's molecules is carbon, thus carbon compounds are ubiquitous in living things.

Subject:: Engineering; Life Science; Chemistry; Physics
Provider:: NSDL Staff
Provider Set:: NSDL Science Refreshers
Date Added:: 11/06/2010

Chem4Kids: Matter

Chem4Kids: Matter

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These pages are set up like a self guided tutorial. Click on the next stop on the tour button at the bottom of each page to learn more about matter, states of matter and the particulate nature of matter.

Subject:: Chemistry; Physics
Material Type:: Diagram/Illustration
Provider:: NSDL Staff
Provider Set:: NSDL Science Refreshers
Date Added:: 11/06/2009

Chemical Bonding

Chemical Bonding

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It introduces the concepts of ionic and covalent bonding. This module is the second in a series on chemical reactions.

Subject:: Engineering; Education; Chemistry; Physics; Space Science
Material Type:: Assessment; Diagram/Illustration; Interactive; Unit of Study
Provider:: NSDL Staff; UCAR Staff
Provider Set:: NSDL Science Refreshers; Visionlearning
Author:: Anthony Carpi; Anthony Carpi, Ph.D.
Date Added:: 11/06/2003

Chemical Changes

Chemical Changes

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This page lists and describes signs of chemical change and inlcudes photographs.

Subject:: Chemistry; Physics
Material Type:: Diagram/Illustration
Provider:: NSDL Staff
Provider Set:: NSDL Science Refreshers
Date Added:: 11/06/2010

Chemical Elements: An Online Interactive Periodic Table

Chemical Elements: An Online Interactive Periodic Table

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This is an online interactive periodic table of the elements which includes all elements up to 118. There are several different options for viewing, such as date of discovery, electron configuration, number of neutrons, etc. Elements can also be viewed by element groups. Additional links to further information on a particular element are given in some cases. Citation information is also provided.

Subject:: Engineering; Life Science; Chemistry; Physics
Material Type:: Diagram/Illustration
Provider:: NSDL Staff
Provider Set:: NSDL Science Refreshers
Author:: Yinon Bentor
Date Added:: 11/06/2009

Chemical Reactions

Chemical Reactions

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Though titled for kids the information presented at this site is thorough and supported with hot links to related concepts as well as illustrations. Click on the blue Next Stop on the Tour button to continue learning.

Subject:: Chemistry; Physics
Material Type:: Diagram/Illustration
Provider:: NSDL Staff
Provider Set:: NSDL Science Refreshers
Date Added:: 11/06/2009

Comets

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This article describes what comets are in general, some specific comets, and some astronomers associated with finding and understanding comets. Photographs are included.

Subject:: Geoscience; Space Science
Material Type:: Diagram/Illustration
Provider:: NSDL Staff
Provider Set:: NSDL Science Refreshers
Date Added:: 11/06/2006

Common Sense Concepts of Motion

Common Sense Concepts of Motion

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Common sense (CS) misconceptions are not arbitrary or trivial. Indeed, every one of the misconceptions about motion common among students today was seriously advocated by leading intellectuals in pre-Newtonian times. If the evaluation of CS was so difficult for the intellectual giants from Aristotle to Galileo, we should not be surprised it is a problem for ordinary students today. Accordingly, common sense beliefs should be treated with genuine respect by instructors and regarded as serious alternative hypotheses to be evaluated by scientific procedures. A taxonomy of common sense concepts which conflict with Newton s laws is presented. Elementary teachers who are aware of these CS beliefs can teach deliberately to avoid contributing to student development of misconceptions.

Subject:: Education; Chemistry; Physics
Material Type:: Full Course
Provider:: ComPADRE Digital Library; NSDL Staff
Provider Set:: ComPADRE: Resources for Physics and Astronomy Education; NSDL Science Refreshers
Author:: David Hestenes; Ibrahim Abou Halloun; Ibrahim Halloun
Date Added:: 06/12/2004

Conductors and Conductivity

Conductors and Conductivity

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This page from a comprehensive physics site, describes, defines, and illustrates electrical conductivity. Click on Resistance in the right hand navigation bar for similar information regarding conductivity's opposite, resistivity.

Subject:: Chemistry; Physics
Material Type:: Diagram/Illustration
Provider:: NSDL Staff
Provider Set:: NSDL Science Refreshers
Author:: Andrew Rader
Date Added:: 11/06/2009