Oobleck, a popular substance often encountered in science demonstrations, intrigues many with its unusual behavior. This non-Newtonian fluid changes fluidity based on applied pressure. A common question arises: what happens if one consumes oobleck? Understanding its properties and components clarifies the immediate sensations and potential health considerations of ingestion.
Understanding Oobleck
Oobleck is a simple mixture primarily composed of cornstarch and water, typically in a ratio of about 1.5 parts cornstarch to one part water. This combination forms a suspension, meaning the cornstarch particles are dispersed within the water rather than fully dissolved. Oobleck is a shear-thickening fluid. Unlike common liquids such as water, whose viscosity remains constant regardless of force, oobleck’s viscosity increases under stress.
When pressure is applied rapidly, such as hitting or squeezing it, the cornstarch particles are forced closer together, trapping water between them and creating a temporary, semi-rigid structure. This makes it feel like a solid. However, when little or no pressure is applied, or when force is applied slowly, the particles can roll over each other, allowing the mixture to flow like a liquid. This ability to switch between liquid and solid-like states provides insight into its behavior during ingestion.
Immediate Physical Effects of Ingestion
Ingesting oobleck presents a distinctive sensory experience. Upon entering the mouth, the initial sensation is likely that of a thick, pasty substance. As chewing or swallowing attempts begin, the pressure exerted can cause the oobleck to temporarily stiffen, creating a challenging and unusual texture that resists easy manipulation. This shear-thickening property means that the more force applied by the mouth and throat muscles, the more solid-like the oobleck becomes, potentially making it difficult to swallow smoothly.
The mixture might feel sticky and could adhere to the inside of the mouth or throat, contributing to a sensation of obstruction. If swallowed, the changing consistency could lead to a feeling of it getting “stuck” or moving slowly down the esophagus. The taste is generally described as unpleasant, being merely a bland combination of cornstarch and water. The physical challenge lies in managing a substance that resists digestive actions.
Safety Considerations and Next Steps
Oobleck, made from cornstarch and water, is non-toxic and safe for incidental contact or small accidental ingestion. However, consuming larger quantities can lead to some minor issues primarily related to its high starch content. The lack of fiber in cornstarch means it can be rapidly digested, potentially causing temporary digestive upset such as stomach discomfort, bloating, or gas. In some instances, it might contribute to constipation due to its thickening properties and lack of dietary fiber.
If a significant amount of oobleck is ingested, the primary recommendation is to drink plenty of water. Water helps dilute the mixture and aids in its passage through the digestive tract, preventing excessive thickening that could cause discomfort. While generally safe, seek medical attention for choking or persistent, severe discomfort after ingesting oobleck, especially with breathing difficulties or prolonged abdominal pain. Such severe reactions are uncommon with typical oobleck ingredients.