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Factors Affecting Plant Growth
Students determine the physical and chemical factors that affect plant growth. In this biology lesson, students explain the role of hormones in plants. They investigate how competition with other plants affect their growth.
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Reaction Rates
Students work in groups of 4-6 for the experiment/activity part of this exercise. They base their explanation on what they observed. Students observe how substances react chemically in characteristic ways with other substances to form...
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Water-Holding Capacity
Students design and conduct an experiment to compare the water-holding capacity of sand, soil, and moss. They measure the change in weight for each material after adding the same amount of water to each material.
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Solar Cell Simulation
Second graders describe how energy moves from the Sun to the photovoltaic cell to the wire and to the load. In this solar cell simulation lesson, 2nd graders demonstrate the movement of photons and electrons to emulate how solar energy...
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Temperature and Keq
The presentation offers a set of three problems related to temperature and equilibrium reactions. It walks through solving each, reminding pupils how to figure for the forward and reverse rates.
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Global Warming Statistics
Students research real-time and historic temperature data of U.S. and world locations, and analyze the data using mean, median, and mode averages. They graph the data and draw conclusions by analyzing the data. A spreadsheet is used to...
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Let's Heat Things Up!
Students build and evaluate simple models to understand the greenhouse effect. They explore the role of increased greenhouse gas concentration in global warming, and the implications of global warming theory for engineers, themselves...
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Environmental Issues
For this environmental issues worksheet, students are given 10 current topics that are problems in our environment today. They complete sentences about each topic by filling in the blanks with the appropriate terms. Some of the issues...
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Science: Acid Base Quiz
In this science: acid base quiz worksheet, students answer 20 true or false questions, not interactively, about acids and bases, then scroll down to check their answers.
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Heating Crystals
Young scholars examine the effects of heating on various crystals. They formulate and revise scientific explanations and models using logic and evidence. Students work individually during this experiment.
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Temperature and Enzymes
Students compare the times it takes the milk in each of two cups to curdle. They are told that an enzyme that is added to the milk, rennin, is involved in the natural curdling process of milk. Students are asked to consider what...
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Worksheet Heat of Reaction (Bond Energies)
In this bond energies worksheet, students analyze bond enthalpy data in order to estimate the change in heat, in kilojoules, of three different chemical reactions.
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Synthesis Reactions
Tenth graders write and balance chemical equations and make a PowerPoint presentation on synthesis reactions.
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Mystery Polymers
Students examine how some natural substances are polymers. In this polymer lesson students complete a lab and give examples of a physical change.
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Carbon Monoxide and Population Density
Tenth graders investigate the carbon monoxide level at a fixed latitude to determine if there is a relationship to population density. They download data sets and generate a graph, and find locations using the Earth's coordinate system....
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Global Warming
In this global warming worksheet, students complete multiple choice questions about global warming. Students complete 5 questions total.
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The Big Burp:A Bad Day in the Paleocene
Students describe the overall events that occurred during the Paleocene extinction event as well as the processes that are believed to result in global warming after group research. They infer how a global warming event could have...
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Emulsion_ Compulsion
Students experiment with common household products to determine the properties of emulsions and how they fit into the classifications of matter through this series of lessons.
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Units in Thermochemical Calculations
Learners study how to complete thermochemical equations. In this equation lesson students learn how to manipulate equations to calculate energy changes and reactions.
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That Is Predictable
Students investigate the changes that can take place in an aquatic environment. They conduct research using a variety of resources. The research is used to report different possibilities of change because of abiotic or biotic factors.
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The Chemistry of Coal
Students investigate the chemistry of coal. This lesson serves as a review of conservation of mass, simple reactions and equation balancing. During the lesson, students research chemical components of coal, as well as environmental...
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Einstein's BIg Idea
Pupils discuss what the m in E=mc2 represent. They relate that mass in a chemical reaction is always conserved. Students convey that atoms rearrange themselves in chemical reactions to form different molecules and compounds.
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Developing a Theory About the Nature of the Contents of a Sealed Box
Students observe the changes of a closed chemical system. They record and analyze the data as they manipulate the system. They answer questions to end the instructional activity.
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Quarter Coin Cookies
Students study the historical figures and symbols of U.S.
patriotism depicted on the penny, nickel, dime, and quarter coins. They explore the processes involved in making coins, and how metals canchange in consistency from the...
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