Serendip
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...
Curated OER
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...
Curated OER
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...
Curated OER
Cell Study
Students (females) are introduced to the cell. They discuss what a cell is, and students define what a cell is. Students comprehend that all living things are made up of cells. They comprehend that life is defined as something that...
Curated OER
Energy in Living Systems
High schoolers are asked: Is our life's purpose over when it's over? What happens to our bodies? They analyze the flow of energy through living systems. Students compare the metabolism of autotrophs with that of heterotrophs. They...
