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Connect the Species
Fourth graders, in pairs, explore energy transfer and species interrelationships by viewing slides on a microscope. hey explore phytoplankton (producers) and zooplankton (consumers)
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Non-Nutrients: Fiber and Water
Young scholars discuss how much fiber and water a person needs each day. They use beans soaked in water to show the benefits of water to the human body. They also learn the health benefits to eating healthy.
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Chromatography
Students research types of chromatography and complete chromatography experiments.
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Acid and Base Testing 2
Students design and conduct an experiment on unknown solutions after studying descriptions of indicators and the way in which they identify acids and bases. Students must gather, organize, and analyze data as well as make inferences...
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Chemical Changes
Eighth graders observe two types of interactions in a sealed plastic bag. One bag contains baking soda and water, and the other baking soda and vinegar. They determine what evidence indicates that a chemical change is occurring.
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Acid-Base Titration
Students determine the concentration of an unknown solution. This task assesses students' abilities to state hypothesis, develop procedures for investigation, plan for recording and organizing observations and data, collect data, create...
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Paper Chromatography
Small groups of young scholars perform paper chromatography to separate food dyes into their component colors. Students perform the experiment and collect, organize, and represent their data to form an explanation of their outcomes....
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Heating Crystals
Students 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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Recognizing and Describing Chemical Changes
Seventh graders distinguish between physical and chemical changes in both natural and technological settings. They identify the reactants and products for a given chemical reaction. they then write simple chemical equations given the...
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DNA Extraction
Students are able to extract and observe a visible amount of DNA from Escherichia coli cells. They discuss the properties of DNA. Students confirm the presence of DNA by a reaction with an indicator.
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What Is The Matter?
Students engage in a lesson about the scientific concept of matter. They use essential questions in order to guide the research process. Students engage in several class inquiries that are hands on in order to investigate the properties...
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The Structure of Materials
Learners brainstorm what matter is and how they define it. They construct a water molecule with marshmallows and toothpicks. In addition, they watch videos to explore the use the idea of nanoscience to investigate the properties of...
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Chemistry 151 - Final Review
In this chemistry review activity, students give atomic symbols for given atoms, calculate moles, determine empirical formulas, and balance chemical equations. This activity has 1 drawing, 9 fill in the blank, and 12 word problems.
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Calculating Rates
In this rates worksheet, learners determine the rate of production or consumption for given reactions. Students write chemical equations in complete ionic form or net-ionic form. This worksheet has 6 problems to solve.
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Kernel Power" Ethanol Fuel from Corn
Learners study why corn is a biodegradable, renewable resource. In this ethanol lesson students build models and observe a chemical reaction.
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Will There Be Ozone Tomorrow
Learners collect and analyze real time data. They make comparisons and determinations about the status of ozone in their local area and predict the Ozone level for the next day
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Matter
Young scholars complete a unit of activities to learn about states of matter and how to measure matter. In this matter lesson, students complete 8 lessons to learn about matter, its states, and how to measure matter.
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A Solution for Moles
Students calculate the concentration of different solutions. In this chemistry lesson, students explain what a solution is. They explain ways to change the concentration of a solution.
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Calculate Your Contribution
Young scholars assess the environmental impact of their transportation choices. They keep a transportation journal and use a website to calculate vehicle emissions for themselves and their class. They evaluate their transportation choices.
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Using Ion Exchange Chromatography to Separate Proteins
Young scholars explore protein purification by separating a positively charged molecule, lysozyme, from a negatively charged molecule, albumin, at neutral pH using ion exchange chromatography.
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Acid and Base Testing
Learners study descriptions of indicators and the way they are used to identify acids and bases. They use this information to determine if unknown solutions are acids or bases.
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Acids And Bases -- Universal Indicator
Eighth graders design and perform an experiment that uses a Universal Indicator Color Guide to measure the strength of acids and bases. They also determine happens when acids and bases are mixed together. They decide which of three...
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Acid Precipitation
Students test the acidity of unknown solutions. They use this information to make inferences from data given from recorded rainfall records to identify areas that receive the most acid rain.
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A TOUGH NUT TO CRACK
Based on a set of criteria, learners will evaluate the quality of pecans.1. Bring a gram scale and papershell pecans. Provide five pecans for each student. 2. Divide the class into groups of five and provide each member with five pecans....