Search results

176 resources and 4 collections matched your query.

Search

Library of 3383 accessible STEM media resources.

  • Subject:
  • Type:
  • Accommodation:
  • Source:

Results

Resources

176

Showing resources 141 to 160 of 176

Select a resource below to get more information and link to download this resource.

  • 6-Carbon

    • Image
    • Text Document
    • 3D Model
    3D model of the atom Carbon

    Carbon (from Latin: carbo "coal") is a chemical element with symbol C and atomic number 6. On the periodic table, it is the first (row 2) of six elements in column (group 14), which have in common the composition of their outer electron shell. It is nonmetallic and tetravalent - making four electrons available to form covalent chemical bonds. Three isotopes occur naturally, 12C and 13C being stable while 14C is radioactive, decaying with a half-life of about 5,730 years. Carbon is one of the few elements known since antiquity.

    (Source: Library Lyna)

  • Fusion

    • Image
    • PDF
    • Text Document
    Braille labelled image showing the effects of fusion as two particles collide and multiple other particles break off and collide with other particles.

    In nuclear physics, nuclear fusion is a nuclear reaction in which two or more atomic nuclei come close enough to form one or more different atomic nuclei and subatomic particles (neutrons and/or protons). The difference in mass between the products and reactants is manifested as the release of large amounts of energy. This difference in mass arises due to the difference in atomic "binding energy" between the atomic nuclei before and after the reaction. Fusion is the process that powers active or "main sequence" stars, or other high magnitude stars.

    (Source: APH)

  • 101-Mendelevium

    • Image
    • Text Document
    • 3D Model
    3D model of the atom Mendelevium

    Mendelvium is a radioactive metal of the actinide series. It does not occur naturally and was first made in 1955 by bombarding einsteinium with helium ions.

    (Source: Library Lyna)

  • Screenshot: Phet Simulation - Rutherford Scattering.  Button of Rutherford Atom (large gray and red ball made up of very small red and grey balls). Button of Plumb Pudding Atom (irregular red shapped puddle made up of extreamly tiny gray dots.)

    Stream alpha particles to begin observations in Rutherford’s experiment. Note this sim does not yet have a Keyboard Shortcuts dialog.

    (Source: PhET Interactive Simulations)

  • Cluster of molecules. Caption: are added together to get the mass number.

    Part of the "Chemistry in Action" series. Numerous real-life examples of elements are exemplified in the table. Animations and graphics illustrate concepts not easily achieved through other instructional strategies. Specific patterns in the periodic table are highlighted. Introduces the following terminology: atomic structure, atomic number, atomic mass, periods, and families.

    (Source: DCMP)

  • Two black cats look straight. Caption: Hey, Smart Puppy, how small are atoms?

    Smart Puppy and his friends use peanuts to understand the size of atoms. Part of the “Smart Puppy! and Friends” series.

    (Source: DCMP)

  • Diagram of an atom with two shells displayed on a screen. Inner shell with two electrons is highlighted. Caption: because they aren't in the outermost shell.

    The formation of molecular bonds is an essential part of keeping matter together. The sharing of charges between atoms helps them become more stable. Other topics covered include sharing electrons, bonding tendencies, isomers, VSEPR theory, and molecular geometry. Part of the "Chemistry" series.

    (Source: DCMP)

  • Coulomb's Law

    • Simulation
    Screenshot: Phet Simulation - Coulombs's Law.  Options for Macro Scale or Atomic Scale.

    Observe changes to electrostatic force as you play with the distance between charges and charge amounts at both macro and atomic scales.

    (Source: PhET Interactive Simulations)

  • Glass beaker with a hand holding a clear rod to the bottom of the beaker. A bright light emanates from the bottom of the beaker. Caption: and moved into the modern age of chemistry.

    Beginning with Alchemy's attempt to find the recipe for gold, scientists have strived to unearth the basic building blocks of our world. These building blocks became smaller and smaller as scientists including Isaac Newton and Albert Einstein studied the world. From elements, to the atom, to subatomic particles, the study of our natural world has led to inventions both deadly and fantastic, including X-Rays, MRIs, calculus, and the atomic bomb.

    (Source: DCMP)

  • Close up of an atom. Caption: Each element is atomically individual,

    Part of a series that features a wide variety of video footage, photographs, diagrams and colorful, animated graphics and labels. Begins with a simple definition of the term and concludes with a critical thinking question. For this particular video, students will focus on the term element. Part of the Science Video Vocab Series.

    (Source: DCMP)

  • The periodic table of elements. A grid with letters representing each element. Spanish captions.

    Everything is made of millions of tiny particles. Animations illustrate how matter consists of different types of particles that are responsible for varying characteristics. Concepts and terminology include atom, element, chemical, and compound.

    (Source: DCMP)

  • Illustration of a wave striking an atom. Caption: The shortest wavelength light are gamma rays,

    Dr. Michelle Thaller explains infrared light. Due to its longer wavelengths than those of visible light, infrared light is invisible to the human eye. However, special equipment exists that makes these wavelengths visible. Part of the "Ask an Astronomer" series.

    (Source: DCMP)

  • Rings around an atom. Spanish captions.

    Part of a series that features a wide variety of video footage, photographs, diagrams and colorful, animated graphics and labels. Begins with a simple definition of the term and concludes with a critical thinking question. For this particular video, students will focus on the term kinetic energy. Part of the Science Video Vocab Series.

    (Source: DCMP)

  • Illustration of an atom that has three full rings of electrons with unattached electrons floating around it. Spanish captions.

    Sherlock Olmos uses his famous detective skills to solve his mysterious case of how the periodic table is structured. With a touch of humor, he investigates electrons, valences, and the physical and chemical properties of some of the elements. Part of Chemistry: Solved by Sherlock Olmos Series.

    (Source: DCMP)

  • Function Groups: Hydroxyl and Methyl

    • Image
    • 2.5D Tactile Graphic
    • PDF
    • Text Document
    Hydroxyl groups, which consist of upper case O upper case H attached to a carbon chain, are polar. Methyl groups, which consist of three hydrogens attached to a carbon chain, are nonpolar.

    Figure 2.27 (OpenStax, Biology 2e) caption: These functional groups are in many different biological molecules. R, also known as R-group, is an abbreviation for any group in which a carbon or hydrogen atom is attached to the rest of the molecule.

    (Source: OpenStax)

  • Illustration of an Na atom with no electrons on the third, outer ring. Caption: When an element loses all the electrons

    Sherlock Olmos decides to dig deeper into dark corner of this great house to investigate the suspicious behavior of some chemical elements. The exchange of electrons and the characteristics of hydrogen, fluorine gas, and the noble gases are the primary subjects of his investigation. Part of Chemistry: Solved by Sherlock Olmos Series.

    (Source: DCMP)

  • Function Groups: Carboxyl and Sulfhydryl

    • Image
    • 2.5D Tactile Graphic
    • PDF
    • Text Document
    Carboxyl groups, which consist of a carbon with a double bonded oxygen and an upper O upper H group attached to a carbon chain, are able to ionize, releasing H positive ions into solution. Carboxyl groups are considered acidic. Sulfhydryl is a polar molecule.

    Figure 2.27 (OpenStax, Biology 2e) caption: These functional groups are in many different biological molecules. R, also known as R-group, is an abbreviation for any group in which a carbon or hydrogen atom is attached to the rest of the molecule.

    (Source: OpenStax)

  • Function Group: Phosphate

    • Image
    • 2.5D Tactile Graphic
    • PDF
    • Text Document
    Phosphate groups consist of a phosphorous with one double bonded oxygen and two upper O upper H groups. Another oxygen forms a link from the phosphorous to a carbon chain. Both upper O upper H groups in phosphorous can lose an H positive ion, and phosphate groups are considered acidic.

    Figure 2.27 (OpenStax, Biology 2e) caption: These functional groups are in many different biological molecules. R, also known as R-group, is an abbreviation for any group in which a carbon or hydrogen atom is attached to the rest of the molecule.

    (Source: OpenStax)

  • Function Groups: Amino and Carbonyl

    • Image
    • 2.5D Tactile Graphic
    • PDF
    • Text Document
    Carbonyl groups, which consist of an oxygen double bonded to a carbon in the middle of a hydrocarbon chain, are polar. Amino groups, which consist of two hydrogens attached to a nitrogen, are able to accept H positive ions from solution, forming H subscript 3 baseline positive. Amino groups are considered basic.

    Figure 2.27 (OpenStax, Biology 2e) caption: These functional groups are in many different biological molecules. R, also known as R-group, is an abbreviation for any group in which a carbon or hydrogen atom is attached to the rest of the molecule.

    (Source: OpenStax)

  • Close up views of atoms. Spanish captions.

    Part of a series that features a wide variety of video footage, photographs, diagrams and colorful, animated graphics and labels. Begins with a simple definition of the term and concludes with a critical thinking question. For this particular video, students will focus on the term translational motion. Part of the Science Video Vocab Series.

    (Source: DCMP)

Collections

4

Showing collections 1 to 4 of 4

  • Elements

    • Image
    • Text Document
    • 3D Model

    3D models and images of the entire periodic table of elements

    A collection containing 118 resources, curated by Library Lyna

  • Chemistry

    • Video
    • Image
    • 2.5D Tactile Graphic
    • PDF
    • Text Document
    • Simulation

    A collection of Chemistry related resources

    A collection containing 67 resources, curated by Benetech

  • PhET Simulations

    • Simulation

    A collection of simulations from PhET.

    A collection containing 15 resources, curated by Charles LaPierre

  • Biology

    • Video
    • Image
    • Text Document
    • PDF
    • 2.5D Tactile Graphic
    • 3D Model
    • Audio File

    Biology related concepts

    A collection containing 59 resources, curated by Benetech