In this lesson students will read requested information from a phase diagram and state the primary difference between a generic phase diagram and a phase diagram of water.
This animation shows the effect of change the volume of a gas phase equilibrium mixture where the numbers of reactant and product molecules are different.
This is a 3-dimensional model image of an ethylene molecule.
This brief video describes the laws that govern gas properties (Boyle's Law, Charles' Law, and Avogadro's Law). Assessments for the student to complete after viewing the video and suggested supplemental resources are also included.
This interactive resource is a set of three web-based labs relating volume, temperature, and pressure of a contained gas.
This is the document for the determination of the percent acetic acid in an unknown solution lab.
Students learn about acids and bases and demonstrate how plant extracts can be used as indicators.
Learning Goals:Given acids or bases at the same concentration, demonstrate understanding of acid and base strength by: 1.Relating the strength of an acid or base to the extent to which it dissociates in water 2.Identifying all of the molecules and ions that are present in a given acid or base solution. 3.Comparing the relative concentrations of molecules and ions in weak versus strong acid (or base) solutions. 4.Describing the similarities and differences between strong acids and weak acids or strong bases and weak bases.Demonstrate understanding of solution concentration by: 1.Describing the similarities and differences between concentrated and dilute solutions. 2.Comparing the concentrations of all molecules and ions in concentrated versus dilute solutions of a particular acid or base.Use both the strength of the acid or base and the concentration of its solution in order to: 1.Describe in words and pictures (graphs or molecular drawings) what it means if you have a: Concentrated solution of a weak acid (or base) or Concentrated solution of a strong acid (or base) or other combinations. 2.Investigate different combinations of strength/concentrations that result in same pH values.Describe how common tools (pH meter, conductivity, pH paper) help identify whether a solution is an acid or base and strong or weak and concentrated or dilute.
This is the document for the acid base titration curves lab.
Students devise a scientific investigation to detect acids and bases in common materials. Students will prepare a test solution whose color changes when an acid or base is added.
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Students will investigate concepts related to endothermic and exothermic reactions and activiation energy. Students will construct and interpret an energy diagram showing the progress of an exothermic reaction.
ACE Education is the Agapé Center for Environmental Education, a carefully developed and integrated program designed to meet the goals set forth by the NC Department of Public Instruction. ACE Education is a creative way to meet NC Essential Standards for Science and Social Studies. ACE Education experiences make use of experiential learning – proven to be the most effective method of education.
Part of NCSSM CORE collection: This animation demonstrates the ratio of the combining volumes of hydrogen and oxygen gas to form water.
In this activity, students investigate how increasing the surface area of a chemical increases its reaction rate. Students will compare the reaction rates when a whole antacid tablet and a crushed tablet are added to separate beakers of water.
Students will design and carry out a practical investigation of the effect of temperature on the activity of the enzyme lactase, when immobilised and used in a bioreactor.
Students investigate how different treatments such as work-hardening, tempering, and annealing affect the mechanical properties of a number of metals.
This lesson introduces students to scientific models. The students will learn how models of the atom have changed as new evidence is gathered. The students will also learn about the current model of the atom. Each student will make a model of an atom of a different element.
This app for iPad devices is a fully interactive atomistic simulation that shows the motions of atoms as they attract, repel, and collide with one another. With the tap or swipe of a finger, students can add, delete, or highlight molecules, as well as increase/decrease temperature, pressure, or volume and explore the states of matter. An associated simulation, Salts, allows students to manipulate atoms and ions to join to form crystals.
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.