Grade 6 Students Explore Density Through Everyday Materials

From Romnick Cajigal, Middle School Science Teacher: In a recent class, Grade 6 students investigated the densities of various household materials to better understand how science is present in their daily lives. Working in small groups, they measured the mass and volume of common items such as cooking oil, dish soap, coins, wood, and water to calculate and compare their densities.

Through careful observation and data collection, students discovered that each material has a unique density that determines whether it floats or sinks when placed in water. This hands-on experiment allowed them to connect theoretical concepts to real-world experiences — seeing firsthand how something as simple as mixing liquids or dropping an object into water can be explained through science.

The activity encouraged critical thinking, teamwork, and curiosity, as students shared predictions, discussed surprising results, and reflected on how density plays a role in everyday phenomena — from layering drinks to the design of ships and airplanes. By the end of the session, they had not only strengthened their understanding of measurement and matter but also gained a deeper appreciation for how science helps explain the world around them.