Search Constraints

Number of results to display per page
Results for: Resource Type Others Remove constraint Resource Type: Others

Search Results

  • Others 
    Controlling pH

    Controlling pH

    Learners view an animated presentation showing how the pH level of a cleaning solution is controlled in a closed-loop system in a manufacturing setting. A quiz completes the activity.

    Subjects:
    Chemistry
    Keywords:
    Hydrogen-ion concentration
    Resource Type:
    Others
     
  • Others 
    Measuring Volume Using a Graduated Cylinder

    Measuring Volume Using a Graduated Cylinder

    Learners view an explanation of how to read a graduated cylinder by measuring the lowest portion of the meniscus. A quiz completes the activity.

    Subjects:
    Chemistry
    Keywords:
    Volume (Cubic content) Weights measures
    Resource Type:
    Others
     
  • Others 
    Reading a Triple Beam Balance

    Reading a Triple Beam Balance

    Students identify the parts of a triple beam balance and practice measuring the mass of objects.

    Subjects:
    Chemistry
    Keywords:
    Weights measures Balances (Weighing instruments)
    Resource Type:
    Others
     
  • Others 
    Determining Empirical and Molecular Formulas (Screencast)

    Determining Empirical and Molecular Formulas (Screencast)

    Learners follow a four-step process to determine the empirical formula of a compound from the masses of its constituent elements. The molecular formula is determined in a fifth step using the molecular weight of the compound.

    Subjects:
    Chemistry
    Keywords:
    Molecular weights Chemistry Physical theoretical
    Resource Type:
    Others
     
  • Others 
    The Solid State

    The Solid State

    In this well-illustrated object, learners examine the structures and properties of the four types of solids: molecular, metallic, ionic, and covalent network. Five interactive questions are provided.

    Subjects:
    Chemistry
    Keywords:
    Solid state chemistry
    Resource Type:
    Others
     
  • Others 
    Ions

    Ions

    Ions are electrically charged particles obtained from an atom or from a chemically bonded group of atoms by adding or removing electrons. Eight examples illustrate the number of protons, neutrons, and electrons in positive ions (cations) and in negative ions (anions).

    Subjects:
    Chemistry
    Keywords:
    Ions
    Resource Type:
    Others
     
  • Others 
    Melting Point and Freezing Point

    Melting Point and Freezing Point

    Learners observe that the melting of a solid and the freezing of its liquid occur at the same temperature. The melting point is an intrinsic property and is used to identify a substance.

    Subjects:
    Chemistry
    Keywords:
    Melting points Freezing points
    Resource Type:
    Others
     
  • Others 
    Oxidation Numbers

    Oxidation Numbers

    Learners assign oxidation numbers to atoms in neutral compounds and in polyatomic ions. Six examples are worked through in detail, and three problems are provided.

    Subjects:
    Chemistry
    Keywords:
    Reduction (Chemistry) Chemical reactions Oxidation Oxidation-reduction reaction
    Resource Type:
    Others
     
  • Others 
    A Biological Example of Water Solubility

    A Biological Example of Water Solubility

    In this animated object, students examine the role that the solubility of water plays in various biological functions.

    Subjects:
    Chemistry
    Keywords:
    Water chemistry
    Resource Type:
    Others
     
  • Others 
    Absolute Zero Temperature

    Absolute Zero Temperature

    Learners view illustrations showing the direct dependence of the volume of a gas on temperature and consider the relationship between the Kelvin and Celsius temperature scales.

    Subjects:
    Chemistry
    Keywords:
    Temperature Low temperatures
    Resource Type:
    Others