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Petri Dish Electrolysis Kit

Item # 840830 Exclusive This product is exclusive to Carolina Biological Supply. With Digital This kit includes 1-year access to digital resources including videos, digital teacher’s manuals, printable student guides, interactive lessons, editable assessment questions, and more.

Product Highlights

  • Explore the fundamentals of electrolysis and redox reactions with this colorful activity.
  • High school modeling activity with manipulatives and enough materials for 15 lab groups.
  • Carolina Kits 3D®—Labs that use phenomena to support NGSS and 3-dimensional instruction.



In stock and available to ship.

Though some might consider electricity to be a phenomenon best studied by physicists and engineers, our understanding of it is deeply rooted in the study of chemistry. Electricity is the flow of electrons, it can be generated by chemical reactions, and electrical energy can drive chemical reactions. Electrolysis is a process that uses electric current through a solution to cause an otherwise non-spontaneous oxidation–reduction reaction to occur. Students will investigate electrolysis in solutions and use their observations to answer the Driving Question, "What evidence can we use to support the claim that electrolysis is occurring when electric current passes through a solution?"

Time Requirement
Total, 120 minutes. Teacher prep, 15 minutes; prelab, 30 minutes; 4 investigations, 60 minutes; and assessment, 15 minutes.

Digital Resources
Includes 1-year access to digital resources that support 3-dimensional instruction for NGSS. Digital resources may include digital teacher manual and student guide, pre-lab activities and setup videos, phenomenon videos, simulations, and post-lab analysis and assessments.

Performance Expectation(s)

Crosscutting Concepts
Cause and Effect: Mechanism and Prediction

Disciplinary Core Ideas
PS1.A: Structure and Properties of Matter

Science and Engineering Practices
Constructing Explanations and Designing Solutions

Learning Objectives

  • Use evidence to infer the products of the electrolysis of water
  • Identify the role of electrolytes in the electrolysis of water
  • Construct an evidence-based argument about the products formed during the electrolysis of potassium iodide

Prior Knowledge and Skills
Students should have a basic understanding of writing and balancing chemical reactions, oxidation states, acid-base chemistry and pH, and be able to use chemical symbols and formulas.

  • This item is only available from Carolina Biological Supply Company.
  • Limited Qty: Flammable Liquid - This product is/contains a limited quantity of a DOT regulated hazardous material. This item will not incur a hazmat fee when shipped by ground. Orders shipping to HI and AK are subject to review and may incur additional shipping charges.
Components Qty Included?
Bogen Universal Indicator with Chart, 100 mL 1 Included
Connector Cords with Insulated Alligator Clips 30 Included
Petri Dishes 20 Included
Phenolphthalein Solution, 1%, 15 mL 1 Included
Pipets 2 Included
Potassium Iodide, 75 g 1 Included
Sodium Sulfate, 50 g 1 Included
Starch, 0.6 g 1 Included
Carolina Science Online® Resources (1-year subscription) 1 Included
Teacher’s Manual with Reproducible Student Guide 1 Included
Batteries, 9 V 15 Needed, Not Included
Bottle for Storing 0.5 M KI Solution, 250 mL (or larger) 1 Needed, Not Included
Distilled Water for Solutions, 325 mL 1 Needed, Not Included
Dropper Bottle for Storing Starch Solution 1 Needed, Not Included
Graduated Cylinders, 10 mL 15 Needed, Not Included
Lab Marker 1 Needed, Not Included
Sheets of White Copy Paper 15 Needed, Not Included
Spatula 1 Needed, Not Included
Stirring Rods 15 Needed, Not Included
Tap Water in a Beaker or Wash Bottle, 200 mL 15 Needed, Not Included
Timers 15 Needed, Not Included
Balance Needed, Not Included
Paper Towels Needed, Not Included
Pencil Leads (for a mechanical pencil) 15 Needed, Not Included