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- Grade Range
- 9th - 12th
- Rating
Students work together to observe the bond lengths of single, double and triple bonds. They make their own predictions about the strength of the bonds and chemical reactions. They answer discussion questions to complete the lesson. Full Review »
- Grade Range
- 9th - 12th
- Rating
Students draw Lewis structures of common covalent compounds using a Chem 3D computer program. They predict the shapes of the molecules, complete a data table, and formulate rules for predicting shapes of molecules. Full Review »
- Grade Range
- 9th - 11th
- Rating
Students work in groups to define and identify examples of compounds, chemical bonds and chemical formulas. They participate in class discussion, take a short quiz and partner with each other in peer evaluation. Students also complete a related homework assignment. Full Review »
- Grade Range
- 10th - 12th
- Rating
Students compare the structure of water and ice and explore the hydrogen bonds in water explain its properties. They visualize water using 3-D molecules and measure bond angles. Full Review »
- Grade Range
- 9th - 12th
- Rating
Students investigate the properties of water and focus upon its chemistry. They focus upon the specific heat, heat of fusion, capillary action, cooling and heating rates, universal solvent, conductivity and pH. They conduct experiments to collect data for analysis. Full Review »
- Grade Range
- 9th - 12th
- Rating
Students engage in a study of the structure of molecules. They conduct an experiment of building molecules and engineering the design with the help of drawing tools. They explore the geometry and polarity of the atomic molecules. Full Review »
- Grade Range
- 10th - 12th
- Rating
Students explore chemical changes compounds and recognize characteristics of ions, cations, and anions. As a class, they participate in a class lecture, study the rules for writing compounds, and write chemical symbols and formulas for molecules and compounds. Students observe a demonstration of the law of conservation of matter and perform experiments. They invent a board game on the concepts of nomenclature. Full Review »
- Grade Range
- 10th - 12th
- Rating
Students list and discuss the differences between ionic and covalent compounds and their bonds. They use the rules for naming ionic compounds to identify the names of ionic compounds given their formulas. They comprehend the Stock system and conventional nomenclature for ionic compounds. Students are introduced to the concept electrolytes. Full Review »
- Grade Range
- 10th - 12th
- Rating
Students predict the shapes of molecules or polyatomic ions using VSEPR Theory and verify these predictions by building 3-d models. They sketch three-dimentional molecular geometries in two dimensions and use hybridization theory to explain the shapes of molecules. Full Review »
- Grade Range
- 11th - Higher Ed
- Rating
Students explain the VSEPR theory. They predict and sketch the shapes of molecules or polyatomic ions in which the central atom is surrounded by a toatal of 4 entities(atoms and/or lone pairs of electrons) using VSEPR theory. Students explain how the shapes of molecules are accounted for by hybridization theory. Full Review »
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