Definition of Mass. Mass is the quantity of matter in an object. More About Mass. Mass is often called as weight. Mass can be measured in both metric and customary units. Kilogram, gram, and milligram are the metric units whereas ounces and pounds are the customary units.
There are 264 calories in a 1 Bowl serving of Japanese Chirashi Bowl (no rice). Calorie breakdown: 40% fat, 3% carbs, 57% protein.
Calories and Macronutrients. The serving size for chayote squash is 1 cup of boiled squash. Each cup weighs  160 grams, or 6 ounces, and contains 38 calories. The squash is so low in calories because of its high water content. Water makes up 93 percent of the weight of boiled chayote squash.