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2009 U.S. National Chemistry Olympiad National Exam - Part I
The 2009 version of the first part of a national chemistry competition is posted for your use with olympiad hopefuls. Test takers deal with 60 multiple choice questions covering an entire year of chemistry curriculum. Use this to...
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Chemistry and Physical Changes
Engage the class like never before as pupils learn to differentiate between multiple physical and chemical changes by conducting a list of small experiments, most often with household materials. They make observations and discuss the...
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Physical vs. Chemical Changes
In this chemical reactions instructional activity, learners read about the differences between physical and chemical changes in substances. Then students identify situations as either an example of physical or chemical change. Learners...
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Physical vs. Chemical Changes and "The Code"
In this chemical and physical change instructional activity, students read about the differences between substances going through physical changes vs. chemical changes. They are given examples of each and evidence to look for in chemical...
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Evidence of Chemical Change
In this chemical change worksheet, students conduct 4 experiments set up around the room. They follow the instructions at each station for each experiment and list the physical properties and observe any changes at each station. Students...
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Chemical Reactions
In this chemical reactions worksheet, students compare endothermic and exothermic reactions, closed and open systems, and reactants and products. Students review physical and chemical changes and how to balance equations. This worksheet...
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Investigating Chemical and Physical Changes
Students explore physical and chemical changes by looking at how different powders react to a variety of substances. They observe and identify the difference between physical and chemical change using a mystery powder.
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Conservation During Chemical Reactions
In this chemical reaction instructional activity, students are given the details of an experiment where sodium chloride and silver nitrate are mixed in a chemical reaction. Students answer nine questions about the chemical reaction, they...
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Hazardous Chemicals in Your Neighborhood
Students examine the effect of hazardous chemicals on humans. They discover how the chemicals are cleaned up and the facilities in their neighborhood. They identify federal and local agencies that oversee environmental hazards
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Chemical Formulas
Learners assess how to go from writing ionic chemical formulas to nomenclature and naming chemical compounds. They brainstorm former studies and share their thoughts in small groups. A list of everyday products (shampoos, toothpaste,...
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Reading Chemical Formulas
Students interpret basic chemical formulas. When class begins, students interpret a "chemical formula" for fruit salad. After they interpret the recipe, students use the same strategies to identify chemical formulas. They evaluate the...
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Chemical Change and Physical Change
Sixth graders combine chemicals to create a chemical change. In this chemicals lesson plan, 6th graders will investigate characteristics of chemical change by combining chemicals. They will learn that color change is an indicator of...
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Chemical Reactions
In this chemical reaction worksheet, students investigate the results of mixing calcium chloride with sodium bicarbonate. They observe the chemical and physical changes that occur, identify the properties of the chemical before and after...
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Chapter 10: Chemical Calculations and Chemical Equations
In this chemical equations worksheet, students write and balance chemical reactions. They complete 98 short answer and problem solving questions on molarity and chemical equations.
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Chemical Changes and Biscuits
Fourth graders investigate chemical changes in everyday life settings, such as cooking. They investigate leavening which is one of the classic chemical changes that people experience. Pupils observe leavening in biscuits with the...
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Physical and Chemical Changes
Students observe examples of physical changes that can take place between the three states of matter and develop common sense and intuition in distinguishing between chemical and physical changes. They observe diagrams on the board from...
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Dust in the Wind; Chemicals in the Water
Young scholars explore mechanical and chemical weathering at stations. They articulate some mechanisms of chemical and mechanical weathering through exploration in a lab. Students stations describe how chemical weathering differs from...
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Understanding Chemical Equations
In this chemical equations worksheet, students identify the reactants and the products, state what phase each is in, and state the mole ratios of all the products and reactants. Students complete 10 problems.
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Physical and Chemical Change of Six White Substances
Students investigate chemical and physical changes in reactions. In this chemical and physical change lesson plan, students mix 6 different white substances with water, vinegar and iodine. They make hypotheses about each substance and...
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What Happens When Chemical Are Put Together?
In this chemical reactions worksheet, students answer 20 multiple choice questions about chemical equations, chemical formulas, oxidation and reduction reactions and acids, bases and salts.
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The Nature of Chemical Change: Acting Out an Example
Young scholars identify the signs that a chemical reaction took place. In this chemistry instructional activity, students role play the movement of different molecules of matter. They classify matter according to their properties.
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Chemical Reactions
In this chemical reactions worksheet, students write chemical equations and calculate the moles of each product. This worksheet has 4 word problems.
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Chemical Change vs. Physical Change
In this physical and chemical change worksheet, students are given a description of these changes. They are given ten changes that the students identify as chemical or physical changes based on their reading.
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Chemical Equations and Symbols
For this chemical equations and symbols worksheet, students are given two written equations and they translate each into chemical symbols. They are given two equations with chemical symbols and they translate them into written equations.
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