Core Skills Analysis
Science
- Learned the difference between permanent and dry erase marker inks, particularly their adhesive properties and solubility.
- Observed the physical property of buoyancy as the dry erase ink floats on water due to being less dense.
- Understood that dry erase ink’s minimal adhesion allows it to detach from surfaces when acted on by buoyancy force.
- Explored how the insolubility of dry erase marker ink in water contributes to the phenomenon of letters floating rather than dissolving.
Tips
To deepen understanding of this experiment, encourage Tim to explore how different liquids affect the floating action—try salt water or oil to compare results. Another engaging extension would be to test various surfaces and marker types to see how adhesion changes. Introduce a basic discussion on density and surface tension to connect this experiment with broader physics concepts, perhaps illustrated with simple hands-on demonstrations like floating paper clips or soap bubbles. Finally, documenting observations in a science journal with sketches and hypotheses can enhance scientific thinking and communication skills.
Book Recommendations
- Basher Science: Physical Science by Dan Green: A fun and colorful introduction to basic physical science concepts, including forces and matter, perfect for understanding buoyancy and density.
- The Way Things Work Now by David Macaulay: An illustrated guide explaining the science behind everyday phenomena, helping connect experiments like floating ink with real-world applications.
- Science Experiments You Can Eat by Vicki Cobb: Engaging experiments that make abstract concepts tangible, encouraging curiosity and hands-on exploration similar to the floating ink activity.
Learning Standards
- Next Generation Science Standards (NGSS) MS-PS1-2: Analyze and interpret data on the properties of substances before and after the substances interact, highlighting solubility and adhesion principles observed.
- NGSS MS-PS2-2: Plan an investigation to provide evidence that the change in an object's motion depends on the sum of the forces on the object and the mass of the object, linked to understanding buoyancy forces acting on ink.
- Common Core Science & Engineering Practices: Developing and using models and engaging in argument from evidence with written hypotheses and observations.
Try This Next
- Create a worksheet comparing permanent vs. dry erase markers detailing adhesion, solubility, and practical uses.
- Write different words and predict which will float before testing in water to encourage hypothesis formation and testing.