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Regents High School Examination: Living Environment 2005
The 2005 version of the Regents High School Examination in the area of ecology is as comprehensive as previous years' exams. It consists of 40 multiple choice questions on everything from the structure of DNA to the interactions within...
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Regents High School Examination: Living Environment 2003
The living environment, from the interior of a cell to the complex relationships among populations, are queried in this final examination. Learners look at air pollution maps, diagrams of cells, population graphs, and drawing of cells....
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Balance Equation
In this balance equations worksheet, students write the charge balance equation for different compounds dissolved in water. Students rank the concentrations of ions and neutrals at equilibrium for solutions formed. This worksheet has 21...
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Balance Stations
Students are introduced to the concept of balance. In groups, they travel between eight stations in which they balance their own body and different types of balls. To end the lesson, they share which one was the hardest and the easiest.
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Balancing Chemical Reactions
For this balancing chemical reactions worksheet, students answer 12 questions about balancing reactions. They find the coefficients to balance atoms in equations, they balance reactions, they find the molecular mass of molecules and they...
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Chemical Equations
In this chemical equations worksheet, students balance equations. This worksheet has 22 chemical equations to write out and balance.
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Chemical Reactions
In this writing chemical reactions learning exercise, 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...
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Experiment on Measuring Reaction Rates
Learners investigate the rate of a chemical reaction. In this rate of reactions lesson plan, students use an electronic balance to measure the change in mass of a chemical reaction between hydrochloric acid and calcium carbonate. They...
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WS 10.2 Electrolytes and Solubility
For this electrolytes and solubility worksheet, students answer questions about electrolytes and write balanced equations for the dissociation of salts in water. They also determine solutes that are soluble in water and write balanced...
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Weather
Fifth graders study the water cycle. In this science lesson plan, 5th graders distinguish among evaporation, condensation, and precipitation phases of the water cycle.
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What Happens When Chemicals are Put Together?
In this chemical reactions worksheet, students solve 53 problems including balancing equations, writing the names of acids, matching the names of compounds with their chemical formulas, and identifying types of reactions.
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Big Enough?
Students explore the concept of density and buoyancy. In this physics lesson, students discover the different factors that affect an object's density and buoyancy in water. Students conduct several investigations to further understand...
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Biosphere II
Students continue their examination of the existence of life on Earth. In groups, they determine the role of the water cycle and other biogeochemical cycles play in keeping balance on Earth. They participate in experiments to discover...
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What Happens When Chemicals are Put Together?
In this chemical reactions worksheet, students answer 12 multiple choice questions about compounds, chemical reactions, and balancing equations using coefficients.
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Activity #4 What Do Equations Mean?
Students practice with writing and balancing simple chemcial equations. they comprehend that chemical equations are a method of using a set of univeral symbols to represent what happens experimentally in chemical reactions. Pupils...
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Barge Building: What Floats Your Boat?
Students construct aluminum foil boats that float while holding the greatest number of pennies. They investigate the concept of water displacement, record their results, and watch a Bill Nye video on buoyancy.
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Enthalpy and Thermochemistry Problem Set
In this thermochemistry worksheet, students answer questions based on the reaction of charcoal and liquid oxygen. Students write a balanced chemical equation, determine the limiting reagent, calculate the mass of each product, and amount...
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Move that Tower
Students investigate ways to find the density of irregular shaped objects. In this physics lesson, students calculate density using its mass and volume. They explain why some objects float or sink in water.
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In the Mix
Students construct a water filter. In this engineering lesson, students discover how to construct a water filtration system. Students work in groups to sort tools by their properties. Students analyze and construct a water filtration...
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WS 4.3 Stoichiometry Part I
In this stoichiometry worksheet, learners use four balanced equations to calculate mole of products made, moles of reactants needed for chemical reactions to proceed and mass of reactants needed to produce products.
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Reactivity Series of Metals
In this reactivity series worksheet, 10th graders complete 10 short answer questions on metals. They identify and balance chemical reactions.
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Molarity and Stoichiometry
For this molarity worksheet, students apply the definition of molarity to the given balanced equations. This worksheet has 4 problems to solve.
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Water
In this water worksheet, students read an excerpt about the effects of pollution on the life cycle of a lake. Then they describe how lakes are affected by the pollution. Students also define why pollution has become such a problem for...
Teach Engineering
Density Column Lab - Part 1
Mass and density — aren't they the same thing? This activity has groups use balance beams and water displacement to measure several objects. The pupils use the measurements to calculate the density of the objects.