This project enables students to understand the chemical action of fire retardants. By applying potential retardants on cloth samples and exposing them to flame, students will investigate how these chemicals can prevent or slow down the burning process.
If cloth is treated with different substances, then those with effective fire retardant properties will burn more slowly or not at all.
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Prepare three solutions of boric acid, baking soda, and ammonium phosphate by dissolving in separate beakers with water.
Dip cotton cloth samples in each solution and let them dry completely.
Take one untreated cloth sample as a control.
Using tongs, hold a treated cloth piece with a flame source to observe the burning rate.
Record the time taken for each cloth to catch fire and burn.
Repeat the process for all treated samples and compare results.
Document observations and results in a chart or table.
Treated cloth samples are expected to burn more slowly compared to the untreated control sample. Some substances may completely prevent combustion.
Type of fire retardant substance
Burning time of cloth
Cloth material, Exposure time to flame, Solution concentration
Perform the experiment in a well-ventilated area. Handle flames with care and have a fire extinguisher nearby.
Display a comparison chart of burning times for different treatments.
Use before-and-after photos to illustrate the effectiveness of fire retardants.
Explain the chemical reactions that retardants use to prevent combustion.
Include a brief discussion on the real-world applications of fire retardants.
