Density Curriculum

Section 2—Lesson 6: Do Liquids Have Density?

Understanding Goals

Subject Matter

• Liquids have density.
• Density is the relationship between volume and mass, so all matter has density.
• Density of liquids is measured by massing a graduated cylinder, pouring in a specific volume of liquid, measuring the mass of the liquid and graduated cylinder, and subtracting the mass of the graduated cylinder.
• The density of a liquid is measured in grams per milliliter (g/ml).
• The density of water is 1.0 grams per milliliter (g/ml).

Causality

• People typically focus on solid objects when they think about different materials. This makes it difficult to realize that liquids also have properties such as density.