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Is Yeast Alive?
Through two investigations, life science learners determine whether or not yeast is alive. They perform tests for metabolism by providing sugar and observing if gas is produced as a byproduct. They incubate some of the sample for at...
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DNA Extraction from Yeast Cells
Students explore DNA. They work in groups and mix prepared detergent/ salt solution, meat tenderizer solution, Fleischman's yeast and water to extract DNA from yeast. Observations are recorded.
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Catalysts and Enzymes
Biochemists experiment with the oxothermic decomposition of hydrogen dioxide by adding manganese dioxide. They observe how pepsin enhances the action of acid on the digestion of egg white proteins. They use yeast to make bread rise. All...
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Microbes
Microbiology beginners feed different sweetening agents to yeast and measure carbon dioxide production to estimate energy contained in each. They set the trials up in zip-top plastic baggies and then measure gas volume by water...
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Population Growth in Yeasts
Students design an investigation using yeast. In this environmental engineering lesson, students design an investigation to determine how environmental factors affect the growth of yeast. They will collect quantitative data and discuss...
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Alcoholic Fermentation in Yeast
Biology learners investigate the effect of sucrose concentration on yeast alcoholic fermentation. During the lesson,they compare and contrast the processes of cellular respiration and alcoholic fermentation. They design an experiment to...
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Measuring Temperature and the Production of CO2 in Yeast
Learners use a model experiment to complete an experiment on yeast. In groups, they identify the independent and dependent variables and use the scientific method to complete the activity. They record their observations and discuss them...
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It's Alive! Using Microorganisms in Cooking
Students create a KWL chart about food. In this chemistry instructional activity, students differentiate physical and chemical changes. They explain how microorganisms are used in food preparation.
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Yeast
Students study the characteristics of yeasts. In this biology instructional activity, students conduct experiments to measure yeast respiration. They discuss the favorable conditions needed for growing them.
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Jr. Chef Club Super Snacks Lesson 6
Students explore healthy snacks. In this nutrition and cooking lesson, students observe and identify food groups on USDA's MyPyramid food guide. Students discuss how fiber helps our digestive system and follow a recipe using yeast to...
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Alcoholic Fermentation Lab
In this alcohol fermentation worksheet, students design an apparatus to study the alcoholic fermentation of yeast. Once complete, students answer 8 short answer questions.
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Cell Energy - Bubbling Yeast
Learners identify that yeast are a single celled fungi that are a great model organism for studying respiration in the classroom. They also fill the bulb of a disposable pipet (eyedropper) with yeast, then submerge the pipet in a test...
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ME402: Growth of Yeast
Students investigate the growth of yeast in a sugar solution. They verify the pressure of carbon dioxide using bromothymol blue. Students are asked to describe the difference between the contents of the test tubes used and to explain...
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How To Make Yeast Cells Thrive
Students set up and run the experiments they designed in the lesson, 'Population Growth in Yeasts,' using simple yeast-molasses cultures in test tubes. They demonstrate understanding that several environmental factors can contribute to...
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TE Activity: Yeast Cells Respire, Too (But Not Like Me and You)
Student observe and quantify the respiration that occurs in yeast-molasses cultures. They complete an effective experiment in order to examine how to think critically about the results.
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What Do Bread and Beer Have in Common?
Young scholars listen to an explanation of yeast cells and how they effect bread and beer. They discuss the ways alcohol affects the human body and participate in an indirect observation about cell respiration in yeast-molasses cultures.
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Barf Bag Microbiology
Learners investigate and determine which types of carbohydrates Baker's yeast prefers. They crumble Cheerios, Smarties, and Fruit Loops and feed them to the yeast and watch what happens, when the bags begin to barf.
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Bacteria's Role in Food
Students grow bacteria cultures on agar in petri dishes and do a plate count. They participate in a yogurt making lab to see how bacteria produce lactic acid. They prepare a recipe and identify fungi, fermentation and the role of...
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Yeasts and Molds
Learners investigate the characteristics and nature of yeast and molds help to explain how these microorganisms affect food production. They experiment with yeast in sourdough in preparing sourdough pancakes.
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Yo! Gert-making yogurt
Young scientists or chefs culture yeast to produce yogurt. The materials and a general description of how make yogurt are provided, but there is very little detail otherwise. You could use this as an activity when your biology class is...
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Fungus
Pupils study fungus, its reproduction and uses. In this eukaryote lesson students complete several fungal experiments.
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Yeast Power!
Students examine how not all microorganisms are bad and that some can actually be beneficial. In this yeast lesson students complete an experiment with yeast and answer questions.
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Breathing Yeasties
Students show how microorganisms and the carbon cycle interact. In this microorganisms lesson plan, students show this by using yeast, sugar, and water, and observe the energy flow.
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Root Beer Production
In this fermentation learning exercise, students conduct an experiment to illustrate how the yeast fermentation process is used to produce carbonation. This learning exercise has 5 short answer questions.