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56

Showing resources 21 to 40 of 56

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  • Brownish liquid with foam on top. Spanish captions.

    What happens to waste after it is discarded? Treating discarded waste consumes many resources and hours of man power. A walk through the facilities of CEAMSE reveals what happens to discarded items and the residue they leave behind.

    (Source: DCMP)

  • 80-Mercury

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

    Mercury is a chemical element with the symbol Hg and atomic number 80. It is commonly known as quicksilver and was formerly named hydrargyrum. It is the only metallic element that is liquid at standard conditions for temperature and pressure.

    (Source: Library Lyna)

  • Person holding an open beaker of a clear liquid next to an empty test tube. Caption: Acetic acid is weaker than most inorganic acids.

    Organic acids, found in common foods, appear as citric acid (lemons), acetic acid (vinegar), and malic acid (apples). Also shows esterification and the formation of an ester.

    (Source: DCMP)

  • Green liquid pouring into a measuring glass. Spanish captions.

    Students explore the relationship between observations and measuring things in science. Specific ways of measuring length, mass, volume, and temperature are demonstrated using tools common to the classroom. Other terminology includes unit of measurement, meter stick, metric ruler, balance, graduated cylinder, and thermometer.

    (Source: DCMP)

  • Molarity

    • Simulation
    Screenshot: Phet Simulation - Molarity.  Slide adjusters for Solute amount, Solution Volumne, with a large beaker of liquid and a indicator of the Solution Concentration.

    What is concentration? Explore the relationships between moles, liters, and molarity by adjusting the solute amount, solution volume, and changing solutes to compare different chemical compounds in water.

    (Source: PhET Interactive Simulations)

  • Two glow sticks immersed in separate containers of liquid. One stick is glowing much brighter than the other. Caption: The one in hot water gets brighter

    What makes a glow stick glow? And why doesn't it heat up from the light? The answer lies in the processes taking place during chemiluminescence.

    (Source: DCMP)

  • Salts

    • Video
    Beakers labelled 1M KOH, ind. and 1M HCI. Another beaker with a greenish liquid has a tube with a nozzle at the mouth of it. Caption: The neutral solutions will be changed

    Chemistry experiments with salts demonstrate the following: neutralization; neutral, alkaline, and acid solutions; preparing zinc sulfide and sodium chloride; and the formation of ammonium chloride.

    (Source: DCMP)

  • Test tube with aqua liquid in the bottom is immersed in ice water. Caption: and at low temperatures, the reaction is slowed down.

    Experiments show the production and properties of carbon dioxide and its use as a fire extinguisher. The second part demonstrates the effect of surface area, temperature, and concentration on chemical reaction rates.

    (Source: DCMP)

  • Clear vial with a glowing pink liquid. Caption: may one day make treating cancer easier

    Professor Michael Sailor hopes to dramatically change how cancer is being treated. With support from the National Science Foundation, he is on a quest to create nanoparticles that travel the bloodstream, latch onto cancers in their earliest stages, and destroy them.

    (Source: DCMP)

  • Molecules arranged in a cube formation on the inside of a glass. Spanish captions.

    How can substances, such as water, exist in several dramatically different phases? Easy-to-understand examples illustrate how phase changes occur. Additional concepts and terminology include states of matter, particles, solid, liquid, gas, plasma, melting, freezing, vaporization, boiling, evaporation, condensation, and sublimation.

    (Source: DCMP)

  • A scientist sits and talks. Caption: So when you heat it up, it melts.

    What's the difference between thermoplastics and thermoset plastics? The primary physical difference is that thermoplastics can be remelted back into a liquid, whereas thermoset plastics always remain in a permanent solid state. Part of the "Ask a Scientist" series.

    (Source: DCMP)

  • Two people in a lab. One is pouring liquid into a beaker. Caption: So let's see what happens here.

    In this episode, Dr. Fus from Ohio State University discusses some of his science experiments. He also explains the chemistry behind some chemical reactions. As a finale, Dr. Fus demonstrates his "elephant toothpaste" experiment.

    (Source: DCMP)

  • Honey

    • Video
    Close up of bees on a honeycomb. Caption: As the liquid nectar dries, it thickens and changes

    One of the fifteen parts of the "Farm to Market" series. Bees gather nectar from flowers and use it to make honey. Demonstrates bee behavior, beekeeping, honey harvest, and packaging. Follows the process from start to finish, including footage of bees inside their hive.

    (Source: DCMP)

  • Measurement device with leads attached. A rectangular box filled with fluid and a person putting a lid on the box with two leads reaching into the liquid. Caption: An important part of the electrolysis cell

    Experiments demonstrate the electrolysis of copper sulfate and the factors leading to corrosion. Other demonstrations focus on the chemical reactions of iron nails in water, sulfuric acid, sodium hydroxide, sodium chloride, and air.

    (Source: DCMP)

  • Pot of boiling water. Caption: A liquid, like water, boils and becomes a gas.

    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 different states of matter. Part of the Science Video Vocab Series.

    (Source: DCMP)

  • Hands of a person holding a syringe with liquid in one hand and a small baby bird in the other. Caption: Chris: He's feisty.

    Dr. Chris races against the clock after a policeman’s pet is deliberately poisoned. Also, the clinic takes in a malnourished penguin after severe storms wash it ashore, and a seven month old puppy faces a scary operation after a run in with a car.

    (Source: DCMP)

  • A large formation of ice. Caption: The temperature at which point a liquid becomes a solid

    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 what it means for substances to freeze. Part of the Science Video Vocab Series.

    (Source: DCMP)

  • Reactions

    • Video
    A beaker full of murky liquid. Caption: a chemical reaction takes place

    Part of the "Chemistry in Action" series. Chemicals interacting with each other are one of the most fascinating topics in chemistry. Fireworks, burning flares, and rusting all illustrate chemical reactions. Describes the different types of reactions as well as the process of balancing chemical equations. Introduces the following terminology: chemical equations, Law of Conservation of Mass, decomposition and synthesis reactions, replacement reactions, and reaction rates.

    (Source: DCMP)

  • Four test tubes. Three are labelled as Fe3O2, PbO2, and MnO2. The fourth is unlabeled and a beaker of colored liquid is being poured into it. Caption: To make the production of oxygen more visible,

    Presents three key concepts about chemical reactions and energy changes: exothermic and endothermic reactions, reaction rates involving temperature and concentration, and catalysts. Each concept is illustrated with a variety of experiments and computer animation to illuminate what is happening both visibly and at the molecular level.

    (Source: DCMP)

  • A boy blows a balloon. Caption: All gases will completely fill any closed container.

    Matter is made up of tiny particles called molecules. Host, Max Orbit, helps students learn all about the different properties, qualities, and characteristics of matter. He also discusses solids, liquids, and gases. Part of the "Way Cool Science" series.

    (Source: DCMP)

Collections

3

Showing collections 1 to 3 of 3

  • 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

  • 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

  • PhET Simulations

    • Simulation

    A collection of simulations from PhET.

    A collection containing 15 resources, curated by Charles LaPierre