Measurement and lab skills

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  Triple Beam Balance

  Learn how to determine the mass of an object using a triple beam balance. The mass of a variety of objects can be determined using … this simulated version of a common real-world laboratory tool for measurement.

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  pH Analysis

  Test the acidity of common substances using pH paper. Materials including soap, lemon juice, milk, and oven cleaner can be tested by … comparing the color of pH strips to a standard scale.

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  pH Analysis: Quad Color Indicator

  Test the acidity of many common everyday substances using pH paper (four color indicators). Materials including soap, lemon juice, milk, … and oven cleaner can be tested by comparing the color of the pH strips to the calibrated scale.

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  Stoichiometry

  Solve problems in chemistry using dimensional analysis. Select appropriate tiles so that units in the question are converted into units … of the answer. Tiles can be flipped, and answers can be calculated once the appropriate unit conversions have been applied.

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  Calorimetry Lab

  Investigate how calorimetry can be used to find relative specific heat values when different substances are mixed with water. Modify … initial mass and temperature values to see effects on the system. One or any combination of the substances can be mixed with water. A dynamic graph (temperature vs. time) shows temperatures of the individual substances after mixing.

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  Density Laboratory

  With a scale to measure mass, a graduated cylinder to measure volume, and a large beaker of liquid to observe flotation, the … relationship between mass, volume, density, and flotation can be investigated. The density of the liquid in the beaker can be adjusted, and a variety of objects can be studied during the investigation.

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  Determining Density via Water Displacement

  Drop objects in a beaker that is filled with water, and measure the water that flows over the edge. Using Archimedes' principle, determine … the density of objects based on the amount of displaced water.

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  Mystery Powder Analysis

  Perform multiple experiments using several common powders such as corn starch, baking powder, baking soda, salt, and gelatin. The results … of the research on the known powders can then be used to analyze several unknowns using the scientific method. The unknowns can be a single powder or a combination of the known powders.

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