Part of NCSSM CORE collection: This animation shows how the volume of a gas changes with the number of moles of gas at constant temperature and pressure.
Part of NCSSM CORE collection: This is the document for the conductivity titration of Ba(OH)2 with H2SO4.
This online resource provides students background content that explores the relationship between atomic structure and light energy.
Sample Learning Goals
Balance a chemical equation.
Recognize that the number of atoms of each element is conserved in a chemical reaction.
Describe the difference between coefficients and subscripts in a chemical equation.
Translate from symbolic to molecular representations of matter.
Students write balanced equations for a series of word equations. Students will also indicate the type of reaction as described.
This article can be used with the activity "Chemistry in your Bathroom" or independently. In this article students will learn about surfactant, emulsifying agents, and surface tension. This lesson is great for teaching about the difference between hydrophyllic and hydrophobic molecules.
Sample Learning Goals
Describe the relationships between volume and amount of solute to solution concentration
Explain qualitatively the relationship between solution color and concentration
Predict and explain how solution concentration will change for adding or removing: water, solute, and/or solution
Calculate the concentration of solutions in units of molarity (mol/L)
Design a procedure for creating a solution of a given concentration
Identify when a solution is saturated and predict how concentration will change for adding or removing: water, solute, and/or solution
Describe the relationship between the solution concentration and the intensity of light that is absorbed/transmitted
Describe the relationship between absorbance, molar absorptivity, path length, and concentration in Beer’s Law
Predict how the intensity of light absorbed/transmitted will change with changes in solution type, solution concentration, container width, or light source, and explain why
This diagram shows the relationship between the nuclear binding energy of an isotope and its atomic mass.
Part of NCSSM CORE collection: This is the student document for the bleach analysis lab.
In this lesson, students will investigate the Law of Conservation of Matter using observation and data collecting and answering inquiry-based questions.
Part of NCSSM CORE collection: This animation shows the rotation around a single bond in a molecule.
In this activity, students determine the number of valence electrons for a variety of elements. They will then create Lewis structures (using pieces of cereal or small candies as electrons) to show what happens when two of the elements combine via ionic bonding.
This assessment resource probes for student mastery of concepts associated with chemical bonding.
This demonstration shows students that Boyle's law can actually be used in the real world as a tool for measuring pressure. A graduated cylinder and balloon is used to create a simple but effective pressure gauge.
In this simple activity, students are able to visualize and manipulate the relationship between pressure and volume (Boyle's Law).
This diagram shows the sp3d2 hybridization in BrF5.
Part of NCSSM CORE collection: This video shows the collection of data to determine the rate law for the reaction of bromate and iodide ions in acidic solution.
Part of NCSSM CORE collection: This is the document for the bromate iodide rate law lab.
This demonstration involves properties of carbon dioxide and hydrogen. A video is included in addition to the written instructions. It touches on a number of areas of chemistry: density of gases, solubility of gases, sublimation and combustion. Each of these areas could be explored in more detail, depending on the level of the group.
Part of NCSSM CORE collection: This is the document for a buffer activity lab. Students will measure and record the pH of various solutions and then measure the pH of the solution after the addition of a buffer solution. They will use their results to gauge the effectiveness of the buffers. NOTE: This lab uses CBL probes and TI-83+ calculators.