Curated OER
Activity #15 The Cartesian diver
Students comprehend that the Cartesian diver is a dropper and the water and air inside it. They vary the volume of the air and the amount of water, the diver can be made to be either more or less dense than water. Pupils squeeze the...
Curated OER
Activity #16 Dancing Spagehetti
Learners experiment with floating the spaghetti, the gas functions like a life preserver. Pupils comprehend that a person is slightly more dense than water. They comprehend that a life preservers are made of low-density materials. The...
Curated OER
Chemistry Review
In this chemistry overview activity, students review stoichiometry, states of matter, thermochemistry, gas laws, chemical bonding, molarity, chemical equilibria, and kinetics. This activity has 41 problems to solve.
Curated OER
Serial Dilution of CuSO4 and Changing the Value of Paint
Students relate solution concentration and saturation to color and compare methods of changing value and color intensity with paint solutions.
Curated OER
Graphical Determination of Density
Students determine the density of metal shot by a graphical method using significant digits in making measurements and calculations. Students graph a seris of laboratory measurements and determine density from a mass verses volume graph.
Curated OER
Rate of Solution Demonstration
Students explore the factors that can increase the rate of dissolution for a solid. They complete a laboratory exploration in which they compare the dissolution rate of a whole sugar cube to that of a crushed sugar cube in a variety of...
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Production of Hydrogen
Young scholars generate hydrogen gas and examine some of its properities through an experiment. In the experiment, a wood splint is lit along with a candle, then the reaction occurs within the mixture. There are questions for the student...
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Separation of Unknowns in a Liquid
Pupils identify chromatography as method of separating the components of a liquid. Students discover that dyes are composed of more than one component in achieving a particular color in these lessons on paper chromatography.
Curated OER
The Interactive Periodic Table of the Elements
Students study the different types of metals. In this investigative activity students watch a demonstration on the effects of temperature on atoms and take a tour through baone matter.
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Observing the Effect of a Change in Conditions on a System at Equilibrium by Applying Le Chatelier's Principle
Pupils describe the Le Chatelier Principle. They participate in an experiment in which they observe the changes in an equilibrium system. They answer discussion questions to end the lesson.
Curated OER
How is the Strength of an Acid Determined?
Students study acids and how they can be measured. In this acid lesson students distinguish the properties that create strong and weak electrolytes.
Curated OER
Solids, Liquids, and Gases
Students explore the three main forms of matter: solid, liquid, and gas. They examine concrete examples of each, using their five senses and "experimenting" to find differences in them. They find pictures of each, cut them out and past...
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The Synthesis of Some Organic Compounds And Their Representative Structures
Students examine how to represent organic compounds three-dimensionally. They write a synthesis reaction for three demonstrations, and construct a three-dimensional structure using a molecular modeling set.
Curated OER
Alka Rockets! An Introduction to Kinetics
Students identify the factors that influence reaction rates. In this chemistry lesson, students design an experiment to test one factor they identified. They perform the experiment and share the results to the entire class.
Curated OER
Activity #5 Soils-Permeability and Impurity Removal
Middle schoolers predict which types of soils would work best for keeping contaminants contained. They comprehend that in the past, landfills have been one major source of groundwater contamination. Pupils comprehend that placing and...
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Does Dye Die? Foreign Chemicals in Our Environment
Learners conduct an experiment to observe photolysis in the lab. In this chemistry instructional activity, students explain the mechanism behind photolysis. They test the impact of a non-toxic marker to plant metabolism.
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Acids and Bases
Students use supporting evidence to predict if common household substances are acids or bases. They determine the pH of the substances and describe the results of the investigation and characteristics of each substance.
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Demonstrating Liquid Crystallization
Students conduct an experiment which illustrates applications of chemistry in our everyday world.
Curated OER
The Dose makes the Poison
Learners investigate the effect of a chemical (they choose) on the germination of seeds. They calculate % chemical concentrations in water, form a hypothesis, and discuss the ethics of using animals in biomedical research.
Curated OER
How Sweet It is! A Colorful Sugar Solution Density Column
Students examine the affect of density. Using a graduated cylinder and equally prepared volumes of sugar-water solutions and food color, students observe a sugar rainbow. They discover that the greater the amount of sugar in the...
Curated OER
Energy from Hydrocarbons
For this energy from hydrocarbons worksheet, students read about endothermic and exothermic reactions and how hydrocarbons release heat as fuels. Students read how to measure heat changes in reactions and practice finding the specific...
Curated OER
Solubility and Intermolecular Forces
In this solubility and intermolecular force instructional activity, students are given 26 clues about forces between molecules such as hydrogen bonds and London forces and about solubility of solutions.
Creative Chemistry
Transition Metal Ions and Colour
For this transition metal learning exercise, high schoolers are given equations for transition metals and their ions. Each equation shows the changes in the colors of the ions when heat, salt, or other substances are added to the metals.
Creative Chemistry
How to Use the Burette
In this burette activity, learners learn how to use a burette to perform a titration properly and run four trials, indicating their data. Students calculate the initial volume, the final volume, the titre volume, and the mean titre...