Innovating Science® - Optimized Fermentation of Yeast

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Manufacturer ID - IS6503

Students will learn about acids and bases through a class discussion and then test a dilute acid and dilute base with neutral litmus paper to learn how the paper indicates something is acidic or basic. Once that skill is learned they can move on to test some common items that would be found around their house to determine if they are acids or bases. Optional: Extra litmus paper is included to test more items either from home or around the school building for a greater understanding of acids and bases. The activity contains enough materials for 6 groups of students.

Safety Data Sheet

Through the use of a gas pressure sensor, you will be able to monitor the pressure change in a sealed environment and the pressure change provides an indication of the rate of CO2 production. Yeast will be exposed to four different sugar solutions and the overall pressure changes for fermentation in each sugar solution will be compared, providing an indication as to how effective the fermentation process is in the presence of each of the sugars. With this data students will determine the optimum food source for yeast by monitoring growth rate and respiration. There are enough materials for 15 groups and includes a Teacher's Guide and Student copymasters.

Aligned to the Next Generation Science Standards (NGSS)*

Performance Expectations: HS-LS1-7
Cross Cutting Concepts: Energy and Matter
Engineering Practices: Developing and Using Models

Kit Includes:
50g Glucose
50g Sucrose
50g Lactose
50g Fructose
10g Yeast

Required: Pressure sensor

DOT Info:

*"Next Generation Science Standards" is a registered trademark of Achieve. Neither Achieve nor the lead states and partners that developed the Next Generation Science Standards was involved in the production of, and does not endorse, this product.
Brand Name
Innovating Science®
Performance Expectations 5-PS1-3
Cross Cutting Concepts Cause and Effect
Scale, Proportion, and Quantity
Engineering Practices Planning and Carrying Out Investigations
Box Used 12663SBOX
Width (in) 6.25
Height (in) 4
Weight (oz) 19.9
Weight (lb) 1.24
Country of Origin US
Harmonization Code 9023.00.0000
DOT Description Non regulated

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