demonstrations:burning_paper_with_ice
Burning Paper with Ice
Materials: ★★★ Requires materials not commonly found in school laboratories
Difficulty: ★★☆ Can be done by science teachers
Safety: ★★★ Only to be attempted with adequate safety procedures and trained staff
Categories: Chemical Reactions, Oxidation and Reduction
Alternative titles: Ice-Powered Fire, Sodium Peroxide and Water Reaction
Summary
Tissue paper (or another combustible material) is ignited using a chip of ice. The ice melts, releasing water, which reacts with sodium peroxide to produce sodium hydroxide, oxygen, and heat.
Procedure
- Tear or cut tissue paper into very fine pieces and pile them into a small cone shape about 5 cm high on an asbestos or tile plate.
- Place about half a teaspoon of sodium peroxide on top of the paper cone.
- Show students the small chip of ice and place it carefully on top of the sodium peroxide.
- Step back and observe as the ice melts, triggering the reaction that produces heat and reactive oxygen.
- Watch as the fine paper ignites into flames.
Links
Can Ice Burn Paper? (Discrepant Event) - Sam Yew:
📄 Burn Paper with Ice? (half way down page - The Teacher's Guide: https://www.theteachersguide.com/sciencedemonstrations.htm
Variations
None
Safety Precautions
- Perform only as a teacher demonstration—never student hands-on.
- Sodium peroxide is highly reactive; handle with care using tongs and protective gear.
- Always wear safety goggles, gloves, and a lab coat.
- Conduct the experiment in a well-ventilated area or under a fume hood.
- Keep a fire extinguisher or sand bucket nearby in case of uncontrolled flames.
- Dispose of residues safely according to chemical waste regulations.
Questions to Consider
- What reaction took place when the ice was added to sodium peroxide?
- Why does burning require oxygen?
- What was the role of sodium peroxide in this experiment?
- What is the chemical equation for the reaction between sodium peroxide and water?
- Is this reaction exothermic or endothermic?
- What real-life processes also involve rapid oxidation with energy release (e.g., engines, metabolism)?