This is a culminating activity to be used after completion of a Thermochemistry unit, or later in the curriculum as review or evidence of concept retention. Students will create and label a heating curve, and explain what is happening on a molecular level using Livescribe Echo pens.
This series of videos will introduce bonding theory.
In this set of videos students will learn about molecular orbital theory.
In this interactive students will learn chemistry concepts by discovering how "Croda" products transform the bathroom from a disarray to a fully functional clean bathroom. There are articles attached for students to review about various topics.
Students are introduced to the energy transformations involved in the burning of hydrocarbons.
In this activity, students will study how temperature and concentration affect reaction rates and then design a procedure to get the reaction to occur in a specified amount of time. This activity is meant to be used as a performance-based assessment. Detailed student instructions, handouts, and a grading rubric are included.
Students demonstrate understanding of collision theory and reaction kinetics.
Students review the basic characteristics of waves and recognize visible light as part of the electromagnetic spectrum. Students will also model electon energy levels and identify elements based on flame color.
Students will enhance their understanding of combustion using the reaction between dry yeast and hydrogen peroxide. The eperiment demonstrates that certain things are needed for combution - especially oxygen.
In this lab activity, students burn a magnesium strip to reinforce the concepts of chemical and physical changes, reaction types, conservation of mass, formulas and equations, stoichiometry, Lewis structures, and to explore the concept of oxidation/reduction reactions. Students will answer questions during the lab regarding their measurements and observations and also write a lab report to describe their findings.
Students will conduct a series of investigations in order to compare and contrast the various intermolecular forces that exist between compounds. First, students will rank 4 substances according to their melting points. Second, students will work together using the jigsaw research approach to understand the 4 types of intermolecular forces. And lastly, students will use the information gained to go back to their data collected and compare their original compounds and type of intermolecular bond they exhibit.
This lesson reinforces concepts about atomic structure. Using their copy of the periodic table of the elements, gumdrops, toothpicks, a model wave three wavelengths long, and a calculator, each student will construct a correct model of the magnesium atom.
Sample Learning Goals
Describe the relationships between volume and amount of solute to solution concentration.
Explain how solution color and concentration are related.
Predict how solution concentration will change for any action (or combination of actions) that adds or removes water, solute, or solution, and explain why.
Design a procedure for creating a solution of a given concentration.
Design and justify a procedure for changing a solution from one concentration to another.
Identify when a solution is saturated and predict how concentration will change for any action or combination of actions where water or solute change.
Watch your solution change color as you mix chemicals with water. Then check molarity with the concentration meter. What are all the ways you can change the concentration of your solution? Switch solutes to compare different chemicals and find out how concentrated you can go before you hit saturation! Review teacher-submitted activities for ideas on embedding this interactive into lessons.
In this activity, students will evaluate a variety of substances and solutions to determine whether they conduct or do not conduct electricity.
In this lesson, students research and discuss real-world chemical issues. Students will either participate in a debate or write and essay in which they compare and contrast several points of view.
In this demonstration students will observe ice cubes floating on cooking oil, and observe what happens to the liquid water produced as the ice melts, and the density changes. Several associated surface tension phenomena may be observed as part of the demonstration.
In this lesson, students develop an understanding of the relationship between pressure and volume of a gas. They will determine a mathematical formula for this relationship, practice data collection and graphing skills, and make the connection between force and pressure.
The student will use purple cabbage indicator to test five know substances for acidic/alkaline balance. The student will discuss the safety precautions required both inside and outside a lab in handling acids and bases.
In this experiment known volumes of different gases are weighed in a gas syringe and their relative molecular masses are determined using the ideal gas equation.