Innovating Science® - Starch Agar

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SKU

Innovating_Science_IS5167

Manufacturer No

IS5167

Aldon Innovating Science®

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$128.00

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Chemical products can only be purchased by Corporations and Educational Institutions. Private Individuals are not eligible.

Manufacturer ID - IS5167

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.

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Description

Used to determine if bacteria produce extracellular enzymes to catalyze the hydrolysis of starch. Starch agar is inoculated and incubated at 37?C. After 48 hours the surface of the agar is flooded with potassium/potassium iodide solution. Organisms that produce a starch hydrolyzing enzyme will display a clear zone around the area of growth while other areas of the agar containing starch will turn blue-black.

500 g Starch Agar

Use 25 grams with 1 liter of water.

DOT Info:
Non-regulated

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Specification

Brand Name	Innovating Science®
Performance Expectations	5-PS1-3 5-PS1-4
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