This is a laboratory investigation where students will use the scientific method to solve a new, experimental question in chromatography.
Students will study how temp and concentration affect reaction rates and then design a procedure to get the reaction to occur in a specified amount of time.
This is a laboratory exercise designed to allow students to further investigate the light spectrum. This lab is used to have students view the light spectrum first hand as opposed to using lecture alone.
This activity is a lab designed for students to combust magnesium and use results to explain oxidation/reduction reactions.
After the completion of this module students will understand that sound travels in compression waves and must have a medium to travel. Sound also travels in liquids and gases. Students will also understand that sound waves are created by vibrations and capable of transmitting energy.This module was developed by Sarah Donnelly as part of a Virginia Commonwealth University STEM initiative sponsored by the Virginia Department of Education.
"Concept Development Studies in Chemistry" is an on-line textbook for an Introductory General Chemistry course. Each module develops a central concept in Chemistry from experimental observations and inductive reasoning. This approach complements an interactive or active learning teaching approach.
It this exercise the students will discover that pure water does not conduct electricity and that dissolving different substances in water may or may not cause it to conduct electricity.
Students develop and conduct an experiment using the law of conservation of mass to determine whether or not gum should be considered food. Students will compare the mass swallowed for sugar and sugar-free gum. This could be used to discuss solubility.
Using paper towels this activity introduces using the scientific method to set up and test and experiment.
In this activity, learners conduct an oxidation experiment that turns old pennies bright and shiny. Learners soak 20 dull, dirty pennies in a bowl of salt and vinegar for five minutes. They rinse half the pennies with water, then compare the rinsed pennies to the unrinsed after all pennies sit and dry for about an hour. Learners also observe what happens when they submerge a screw and nail in the liquid compared to a nail only half-way submerged.
This activity allows the student to access a webpage that provides examples of stoichiometry using terminology and objects they use in their everyday life. This activity can help a student make a connection between the complex chemical concept of stoichiometry and their current knowledge.
An elementary review activity for chemistry vocabulary, tools, and concepts used with the classroom science curriculum.
This activity is a classroom experiment where students make observations, state hypothesis and carry out an investigation to draw conclusions.
This activity is an inquiry lab where students observe the effects of temperature change on nitrogen dioxide gas, a common component of polluted air, to determine its color.
In this field lab activity, students will determine the density, pH and water content of prairie soil, transition soil, woods soil, and riverbed soil and compare their findings.
This activity is a field investigation where students will observe three areas with high sensitivity to pollution, and test water quality in two of the locations.
This lab activity shows students the Law of Conservation of Matter and intermolecular forces by having them dissolve packing peanuts in acetone.
This activity is a guided inquiry where students will investigate if water molecules have any space between them.
This lab introduces basic chemistry concepts in molecular interactions, measurements, prediction, and critical thinking.
Drawing two dimensional images of an atom.