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Electrolysis of Water
Ninth graders examine the electrolysis of water by completing an experiment. In this water lesson students will explain how hydrogen can be extracted from water and how energy flows through an electrolysis system.
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Surface Tension and 3D Soap Films
Students are introduced to the concept of surface tension, its dependence on material composition, and how it can produce uniquely shaped surfaces.
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Evaporation and Condensation
Young scholars explore how temperature affects the processes of evaporation and condensation.
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Science: What Is the Carbon Cycle?
Students examine the carbon cycle while identifying its sources, sinks, and release agents. Using magazines and newspapers, groups of students design collages illustrating the carbon cycle. Finally, they write responses to several...
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WATER CHEMISTRY
Young scholars list reasons why water is important and investigate and graph the freezing points of different solutions.
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Combustion Reactions
Students write a balanced chemical reaction. They articulate how burning fossil fuels increase the carbon dioxide levels in the atmosphere. Students incorporate all the environmental risks involved as well.
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Matter: Build a Word
Fourth graders examine matter and the periodic table of elements. In this matter lesson, 4th graders discuss atoms and their composition. Students explore the periodic table of elements and use it to spell words out of the elements.
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Oxygen
Students explore oxygen and its physical and chemical propeties. In this investigative lesson students complete several experiments using oxygen.
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The Causes of Differences in Density
Students explore the causes of differences in density. Students choose objects, measure the mass and volume, and calculate the density of each. They perform additional density experiments to model atoms and their correspondence to...
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Why Could the Hindenburg Float?
Tenth graders experiment with floating and sinking objects and heavy and light liquids, using correct terms, like density, to explain what happens. In this Hindenburg lesson, 10th graders watch a demonstration called the invisible...
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Ammonium Nitrate - Efficient Fertilizers
Students study the chemistry of ammonium nitrate and consider the advantages and disadvantages of this compound. They compare different fertilizers and calculate the molar mass and percent nitrogen in the different fertilizers.
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Activity #13 Changing The Look of Sugar
Students observe what happens when sugar is dissolved in water and when it is heated. They weigh the products after each of the two experiments on a balance scale. Pupils distinguish between physical and chemical changes. Students are...
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Chem Word Search Puzzle
In this chemistry terminology worksheet, students review and discuss nineteen terms associated with chemistry and then locate and circle each term in a word search puzzle.
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Reaction Types and Stoichiometry
In this chemical reactions worksheet, students balance chemical reactions and identify each type of reaction. Students write the net ionic equation for reactions. Students calculate moles and grams of reactants or products. This...
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Stoichiometry
For this stoichiometry worksheet, students identify types of reactions, show the products, and balance the equations. Students determine the limiting reagent, theoretical yield, and percent yield for given reactions. This worksheet has 5...
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Solids, Liquids, and Gases
First graders explore the properties of matter. In this states of matter lesson, 1st graders conduct scientific investigations that require them to mix, cool, and heat objects in order to observe changes in the properties of matter.
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Moles, Molarity, Grams, and Formula Units
In this atoms activity, students calculate the number of moles, molarity, grams, or formula units for 20 different problems.
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Animals of the Fire Ice
Students study ice worms and describe how they interact with other species. In this methane hydrate activity students study ice worms and hydrate shrimp to learn their behavior and can participate in an optional activity.
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Giants of the Protozoa
Students describe and define xenophyophores. For this protozoa lesson students divide into groups and complete a lab activity.
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Cell Respiration
In this biology worksheet, students complete a crossword puzzle with 17 questions about the processes involved in cellular respiration.
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Photosynthesis and Cellular Respiration
For this energy worksheet, students review the processes that create energy for a cell: photosynthesis and cellular respiration. This worksheet has 11 fill in the blank and 14 short answer questions.
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Charles's Law
In this Charles's Law worksheet, students review the Kelvin temperature scale, how volume varies with temperature, and Charles's Law. This worksheet has 4 problems to solve.
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Stellar Fingerprints: the Spectra of Stars
Students explain how an element can be identified using emission spectra. They relate the emission spectrum of hydrogen to its absorption spectrum and identify hydrogen absorption lines in the spectrum of stars.
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Necessary Nitrogen
Students view a video that presents the biogeochemical cycle of nitrogen. They compare types of soils and consider how different fertilizers affect soil composition.