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The Floating Tin Sponge—Chemical Demonstration Kit

By: The Flinn Staff

Item #: AP4425

Price: $44.65

With the Floating Tin Sponge Oxidation–Reduction Chemical Demonstration Kit, bubbles of hydrogen produced in a reaction float the aggregate tin to the surface like a sponge. Before students’ eyes, shiny tin crystals form.

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Product Details

Before your very own eyes, you can actually see the formation of shiny tin crystals. The tin is produced by the addition of zinc to a tin(II) chloride solution. Bubbles of hydrogen produced in the reaction float the aggregate tin to the surface like a sponge. Teacher Demonstration Notes included. 

Concepts: Oxidation–reduction, single replacement reactions, electrochemical series, acids, metals. Time Required: 20 minutes Chemicals Provided: Tin(II) chloride solution and zinc.


Materials Included in Kit: 
Tin(II) chloride solution, 700 mL, 2
Zinc, mossy, 140 g

Correlation to Next Generation Science Standards (NGSS)

Science & Engineering Practices

Developing and using models
Constructing explanations and designing solutions

Disciplinary Core Ideas

MS-PS1.A: Structure and Properties of Matter
MS-PS1.B: Chemical Reactions
HS-PS1.A: Structure and Properties of Matter
HS-PS1.B: Chemical Reactions
HS-PS2.B: Types of Interactions

Crosscutting Concepts

Cause and effect
Systems and system models
Stability and change

Performance Expectations

MS-PS1-2. Analyze and interpret data on the properties of substances before and after the substances interact to determine if a chemical reaction has occurred.
MS-PS1-5. Develop and use a model to describe how the total number of atoms does not change in a chemical reaction and thus mass is conserved.
HS-PS1-1. Use the periodic table as a model to predict the relative properties of elements based on the patterns of electrons in the outermost energy level of atoms.
HS-PS1-2. Construct and revise an explanation for the outcome of a simple chemical reaction based on the outermost electron states of atoms, trends in the periodic table, and knowledge of the patterns of chemical properties.
HS-PS1-7. Use mathematical representations to support the claim that atoms, and therefore mass, are conserved during a chemical reaction.