STEM Experiment: Vanishing Ghosts!

Materials Needed:

• Biodegradable Packing Peanuts
• Black Permanent Marker
• Small Bowl
• Water

Directions:

1. Use a black permanent marker to draw a ghost face on each packing peanut. Remember, they MUST be biodegradable packing peanuts. (That means they are made of starch, not polystyrene.)
2. Fill a small bowl with room temperature water.
3. Place one ghost on top of the water and watch what happens.

You will start to see small bubbles appearing on the sides of the packing peanut ghost. And then the ghost will disappear right before your eyes! Your results may depend on the type of Biodegradable Packing Peanuts you use. (about 5 – 10 min.)
If the melting packing peanuts are taking too long to disappear, try using hot water to help speed up the process.

Why Do Biodegradable Packing Peanuts Melt?
These new packing peanuts are made out of biodegradable corn starch, which means they break down easily instead of just sitting in the garbage dump for years and years like the older style ones. The water helps break them down even faster whether water temperature will affect the speed they dissolve.

• How fast do the ghosts dissolve in different temperatures of water? Get a stopwatch and time it.
• Make a chart to record your results.