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Balancing Chemical Equations
Ninth graders explain how atoms and molecules form different substances during chemical reactions and how these processes require losing, gaining or sharing electrons. They correctly write chemical formulas and show how a balanced...
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Cool Chemistry- DIY pH Indicator
Young scholars study the differences between an acid and a base. In this pH lesson students view a demonstration then test chemicals in groups.
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Fertilizers, Pesticides and Human Health
Students define several vocabulary terms related to chemicals and toxicology. Students calculate chemical concentrations in water and explain the toxicological principles that govern safety of substances. Students conduct an...
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Energy Content of Foods
Learners collect data, organize and analyze the data and compare it to real life scenarios. This assignment requires two class periods.
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Basic Vitamins: Water-Soluble and Fat-Soluble
Students examine vitamins and study their functions and food sources. They research what happens to vitamins when foods are overcooked. They prepare a microwaveable vegetable quiche.
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Chemistry: Acids and Alkalis
Students identify substances that are acids and alkalis. In this acids and alkalis lesson, students conduct tests to determine if given substances are acids or alkalis. They test substances and explain the different qualities that make...
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Activity #1 Reactions: Chemical or Physical?
Learners distinguish between physical changes and chemical changes. They comprehend that chemical reactions produce new substances with compositions and properites which are different than those of the starting materials. Pupils also...
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Waterproof Paper
Students explore matter through the concept of displacement. They perforrm an inquiry experiment with a glass, paper and a bucket to demonstrate that gases take up space.
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Chromatography Lab
Students discover the components of primary and secondary colors. In this physical science lesson, students create a set up in which water will separate a color into the component colors along a piece of filter paper. Students will...
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Desalination: Creating a Solar Still
To better understand how solar power can aid in creating desalinated drinking water, the class creates a model still. They will build a model of a solar still, make observations, and discuss how the process works. While the idea behind...
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Physical and Chemical Reactions - Factors Which Affect Reaction Rate
A total of five experiments lead chemistry pros to understand the difference between physical and chemical change. They also experiment with exothermic reaction factors that affect rate of reaction. The procedures are not written in the...
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Air, Air Everywhere! Lesson 2: Acid Rain
Middle school environmentalists record the pH of four different liquids, including two aerosol cleaning products. They liken the products to acid rain and speculate in writing which might affect the human respiratory system. Although...
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Ice Cream
Open this instructional activity by giving a brief history of ice cream. Using liquid nitrogen to lower the temperature, preteens make their own confection. The accompanying activity sheet queries learners about freezing point, the...
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Diffusion Of Molecules
Students investigate molecular movement while studying how to perform a chemistry investigation.
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Specific Heat Capacity of a Metal
Eleventh graders investigate the relationship between heat and energy transfer. They review terms including heat, work, calorimetry and the procedures for an experiment. After assembling the materials for the experiment, they observe...
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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...
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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...
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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.
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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.
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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.
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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.