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Solutions and Solubility Review
In this solutions and solubility review activity, students are given main ideas about intermolecular forces, concentrations of solutions, molar solutions, ionic equations, solubility rules, acids and bases and titrations. Students answer...
Biology Junction
What Is Ecology?
Do you know the name for the biological study of interactions? A short presentation with accompanying worksheet introduces individuals to ecology. The materials offer a broad overview of the subject and the levels of organization to...
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Chemical Calculations
In this elements worksheet, students use the relative atomic masses of given elements to calculate the relative formula mass. Students calculate the mass of compounds from given number of moles and determine the number of moles from a...
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Acids and Bases: Together again!
Students identify principles behind acid-base reactions. They predict factors that may affect an acid-base reaction. Students identify questions and concepts that guide scientific investigations.
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Bhopal - Rate of Reaction
Students determine that the rate of reaction is affected by temperature, surface area, concentration of reagent, and addition of a catalyst or inhibitor. They observe that on December 3rd, 1984, 8000 people died when the chemical plant...
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More Moles Calculations
In this moles learning exercise, students determine the number of grams or moles in the given amount of chemical compound. This learning exercise has 5 problems to solve.
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Chemical Reactions
In this writing chemical reactions worksheet, students solve 15 problems on their own paper using a 3 step-problem solving approach. In addition, students write six balanced equations and classify each reaction. They also write equations...
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Making Soap
In this soap worksheet, students produce soap in the laboratory and test their product by washing away engine oil with their soap. Students answer four questions about tests they perform on their soap.
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Preparation of Triiodomethane (iodoform)
In this preparation of triiodomethane worksheet, learners use propanone to prepare triiodomethane. Students use filtration and recrystallization in order to make the product. They determine the melting point using a melting point apparatus.
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Activity #1 Reactions: Chemical or Physical?
Students 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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Lab 23-Follow Up Questions-Conductivity
In this conductivity learning exercise, students answer post lab questions about substances that transferred electrons resulting in electricity flowing through the conductivity leads use to test each substance.
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The Energy Debate - Energy of Peanut
Learners articulate the difference between the terms heat and temperature. They calculate the amount of energy associated with a given temperature rise and design an experiment to measure the energy of a fuel.
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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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Chemical Equations
In this chemical equations worksheet, students write the symbols for the products and reactants and then write balanced symbol equations for the 20 chemical reactions given.
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Liquid Layers
In this density worksheet, students investigate what will happen when various liquids with different densities are put into the same container. They hypothesis and make observations. Students answer 4 questions about their investigation...
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Energy from Hydrocarbons
In 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...
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Thermochemistry
In this thermochemistry worksheet, students answer 6 questions about specific heat, heat capacity and molar heat capacity. They also complete a crossword puzzle given 20 clues about topics related to thermochemistry. Students solve a...
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Volumetric Analysis 1- To Make a Standard Solution of Sodium Carbonate
In this volumetric analysis instructional activity, students prepare a standard solution of sodium carbonate by following the given directions. They later use the prepared solution in a laboratory practical.
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Solubility and Intermolecular Forces
In this solubility and intermolecular force learning exercise, high schoolers are given 26 clues about forces between molecules such as hydrogen bonds and London forces and about solubility of solutions.
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Transition Metal Ions and Colour
In this transition metal worksheet, students are given equations of transition metals and their ions. Each equation shows the changes in colors of the ions when heat, salt or other substances are added to the metals.
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Volumetric Analysis 3-To Determine the Relative Molecular Mass of a Soluble Base
In this volumetric analysis instructional activity, students determine the relative molecular mass of an unknown group 1 carbonate by experimenting with a known amount of hydrochloric acid. Students use volumetric analysis to determine...
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How to Use the Burette
In this burette worksheet, students learn how to properly use a burette to perform a titration and they run 4 trials and indicate their data. Students find the initial volume, the final volume, the titre volume and the mean titre volume...
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The Burette
In this burette use worksheet, students are given directions for performing a titration using a burette. Students practice reaching the end-point oftitrations and they calculate the mean volume of three trials.
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Thermal Decomposition of Calcium Carbonate
For this thermal decomposition of calcium carbonate worksheet, students perform three experiments on calcium carbonate, make observations and write the equations for each reaction. Students explain in detail what happened at each step...
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